ដោះស្រាយ tan^21.8-tan^21.2/1-tan^21.8tan^21.2

$$\frac { \tan ^ { 2 } 1.8 - \tan ^ { 2 } 1.2 } { 1 - \tan ^ { 2 } 1.8 \tan ^ { 2 } 1.2 }$$

វាយតម្លៃ

$$\frac{73177707426132876062955767664310800000000000000000000000000000000}{133333275554529803379601473477736286925019179673152359354188107497533}\approx 0.000548833$$

ជំហានចម្លើយ

Evaluate trigonometric functions in the problem

$$\frac{0.03142626604335115 ^ {2} - 0.020947013909659987 ^ {2}}{1 - 0.03142626604335115 ^ {2} 0.020947013909659987 ^ {2}}$$

គណនាស្វ័យគុណ 0.03142626604335115 នៃ 2 ហើយបាន 0.0009876101974274855444911222063225។

$$\frac{0.0009876101974274855444911222063225-0.020947013909659987^{2}}{1-0.03142626604335115^{2}\times 0.020947013909659987^{2}}$$

គណនាស្វ័យគុណ 0.020947013909659987 នៃ 2 ហើយបាន 0.000438777391731488974018953948840169។

$$\frac{0.0009876101974274855444911222063225-0.000438777391731488974018953948840169}{1-0.03142626604335115^{2}\times 0.020947013909659987^{2}}$$

ដក​ 0.000438777391731488974018953948840169 ពី 0.0009876101974274855444911222063225 ដើម្បីបាន 0.000548832805695996570472168257482331។

$$\frac{0.000548832805695996570472168257482331}{1-0.03142626604335115^{2}\times 0.020947013909659987^{2}}$$

គណនាស្វ័យគុណ 0.03142626604335115 នៃ 2 ហើយបាន 0.0009876101974274855444911222063225។

$$\frac{0.000548832805695996570472168257482331}{1-0.0009876101974274855444911222063225\times 0.020947013909659987^{2}}$$

គណនាស្វ័យគុណ 0.020947013909659987 នៃ 2 ហើយបាន 0.000438777391731488974018953948840169។

$$\frac{0.000548832805695996570472168257482331}{1-0.0009876101974274855444911222063225\times 0.000438777391731488974018953948840169}$$

គុណ 0.0009876101974274855444911222063225 និង 0.000438777391731488974018953948840169 ដើម្បីបាន 0.0000004333410264746529889489169778480623561524513573048435891937685025។

$$\frac{0.000548832805695996570472168257482331}{1-0.0000004333410264746529889489169778480623561524513573048435891937685025}$$

ដក​ 0.0000004333410264746529889489169778480623561524513573048435891937685025 ពី 1 ដើម្បីបាន 0.9999995666589735253470110510830221519376438475486426951564108062314975។

$$\frac{0.000548832805695996570472168257482331}{0.9999995666589735253470110510830221519376438475486426951564108062314975}$$

ពង្រីក \frac{0.000548832805695996570472168257482331}{0.9999995666589735253470110510830221519376438475486426951564108062314975} ដោយគុណទាំងភាគបែង និងភាគយកជាមួយនឹង 10000000000000000000000000000000000000000000000000000000000000000000000។

$$\frac{5488328056959965704721682574823310000000000000000000000000000000000}{9999995666589735253470110510830221519376438475486426951564108062314975}$$

កាត់បន្ថយប្រភាគ \frac{5488328056959965704721682574823310000000000000000000000000000000000}{9999995666589735253470110510830221519376438475486426951564108062314975} ទៅតួដែលតូចបំផុតដោយ​ដក និងលុបចេញ 75។

$$\frac{73177707426132876062955767664310800000000000000000000000000000000}{133333275554529803379601473477736286925019179673152359354188107497533}$$