Evaluate
-0.00000000000000021158439777879503
Factor
-0.00000000000000021158439777879503
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-0.8290375725550414 \cdot -0.981627183447664 + 0.9816271834476639 \cdot -0.8290375725550417
Evaluate trigonometric functions in the problem
0.8138058173194936778106562532896+0.9816271834476639\left(-0.8290375725550417\right)
Multiply -0.8290375725550414 and -0.981627183447664 to get 0.8138058173194936778106562532896.
0.8138058173194936778106562532896-0.81380581731949388939505403208463
Multiply 0.9816271834476639 and -0.8290375725550417 to get -0.81380581731949388939505403208463.
-0.00000000000000021158439777879503
Subtract 0.81380581731949388939505403208463 from 0.8138058173194936778106562532896 to get -0.00000000000000021158439777879503.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}