求解 165,000=d(1-(1+.002/12))^-(30)(12)/(frac{0.08{12})}

$$165,000 = \frac { d ( 1 - ( 1 + \frac { .002 } { 12 } ) ) ^ { - ( 30 ) ( 12 ) } } { ( \frac { 0.08 } { 12 } ) }$$

求解 d 的值

$$d=\frac{11}{136285652597652400633072146943255896341029201131980190548843315311006893267249227122863590367756090838736813150399831954741580003320794103238355908174878733366334155884618443998783841969103173072216240445102125485099344220416740519344692695598710475488518829182397045850190391541760000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}\approx 8.071282479 \cdot 10^{-1358}$$

求解线性方程的步骤

将分子和分母同时乘以 1000 以展开 \frac{0.002}{12}。

$$165000=\frac{d\left(1-\left(1+\frac{2}{12000}\right)\right)^{-30\times 12}}{\frac{0.08}{12}}$$

通过求根和消去 2，将分数 \frac{2}{12000} 降低为最简分数。

$$165000=\frac{d\left(1-\left(1+\frac{1}{6000}\right)\right)^{-30\times 12}}{\frac{0.08}{12}}$$

1 与 \frac{1}{6000} 相加，得到 \frac{6001}{6000}。

$$165000=\frac{d\left(1-\frac{6001}{6000}\right)^{-30\times 12}}{\frac{0.08}{12}}$$

将 1 减去 \frac{6001}{6000}，得到 -\frac{1}{6000}。

$$165000=\frac{d\left(-\frac{1}{6000}\right)^{-30\times 12}}{\frac{0.08}{12}}$$

将 -30 与 12 相乘，得到 -360。

$$165000=\frac{d\left(-\frac{1}{6000}\right)^{-360}}{\frac{0.08}{12}}$$

计算 -360 的 -\frac{1}{6000} 乘方，得到 13628565259765240063307214694325589634102920113198019054884331531100689326724922712286359036775609083873681315039983195474158000332079410323835590817487873336633415588461844399878384196910317307221624044510212548509934422041674051934469269559871047548851882918239704585019039154176000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000。

$$165000=\frac{d\times 13628565259765240063307214694325589634102920113198019054884331531100689326724922712286359036775609083873681315039983195474158000332079410323835590817487873336633415588461844399878384196910317307221624044510212548509934422041674051934469269559871047548851882918239704585019039154176000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}{\frac{0.08}{12}}$$

将分子和分母同时乘以 100 以展开 \frac{0.08}{12}。

$$165000=\frac{d\times 13628565259765240063307214694325589634102920113198019054884331531100689326724922712286359036775609083873681315039983195474158000332079410323835590817487873336633415588461844399878384196910317307221624044510212548509934422041674051934469269559871047548851882918239704585019039154176000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}{\frac{8}{1200}}$$

通过求根和消去 8，将分数 \frac{8}{1200} 降低为最简分数。

$$165000=\frac{d\times 13628565259765240063307214694325589634102920113198019054884331531100689326724922712286359036775609083873681315039983195474158000332079410323835590817487873336633415588461844399878384196910317307221624044510212548509934422041674051934469269559871047548851882918239704585019039154176000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}{\frac{1}{150}}$$

d\times 13628565259765240063307214694325589634102920113198019054884331531100689326724922712286359036775609083873681315039983195474158000332079410323835590817487873336633415588461844399878384196910317307221624044510212548509934422041674051934469269559871047548851882918239704585019039154176000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 除以 \frac{1}{150} 得 d\times 2044284788964786009496082204148838445115438016979702858232649729665103399008738406842953855516341362581052197255997479321123700049811911548575338622623181000495012338269276659981757629536547596083243606676531882276490163306251107790170390433980657132327782437735955687752855873126400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000。

$$165000=d\times 2044284788964786009496082204148838445115438016979702858232649729665103399008738406842953855516341362581052197255997479321123700049811911548575338622623181000495012338269276659981757629536547596083243606676531882276490163306251107790170390433980657132327782437735955687752855873126400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000$$

移项以使所有变量项位于左边。

$$d\times 2044284788964786009496082204148838445115438016979702858232649729665103399008738406842953855516341362581052197255997479321123700049811911548575338622623181000495012338269276659981757629536547596083243606676531882276490163306251107790170390433980657132327782437735955687752855873126400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000=165000$$

两边同时除以 2044284788964786009496082204148838445115438016979702858232649729665103399008738406842953855516341362581052197255997479321123700049811911548575338622623181000495012338269276659981757629536547596083243606676531882276490163306251107790170390433980657132327782437735955687752855873126400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000。

$$d=\frac{165000}{2044284788964786009496082204148838445115438016979702858232649729665103399008738406842953855516341362581052197255997479321123700049811911548575338622623181000495012338269276659981757629536547596083243606676531882276490163306251107790170390433980657132327782437735955687752855873126400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}$$

通过求根和消去 15000，将分数 \frac{165000}{2044284788964786009496082204148838445115438016979702858232649729665103399008738406842953855516341362581052197255997479321123700049811911548575338622623181000495012338269276659981757629536547596083243606676531882276490163306251107790170390433980657132327782437735955687752855873126400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000} 降低为最简分数。

$$d=\frac{11}{136285652597652400633072146943255896341029201131980190548843315311006893267249227122863590367756090838736813150399831954741580003320794103238355908174878733366334155884618443998783841969103173072216240445102125485099344220416740519344692695598710475488518829182397045850190391541760000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}$$