Evaluate
0.0000002175
Factor
\frac{3 \cdot 29}{2 ^ {10} \cdot 5 ^ {8}} = 2.1750000000000003 \times 10^{-7}
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8.7\times 10^{-8}\times 2.5
To multiply powers of the same base, add their exponents. Add 4 and -12 to get -8.
8.7\times \frac{1}{100000000}\times 2.5
Calculate 10 to the power of -8 and get \frac{1}{100000000}.
\frac{87}{1000000000}\times 2.5
Multiply 8.7 and \frac{1}{100000000} to get \frac{87}{1000000000}.
\frac{87}{400000000}
Multiply \frac{87}{1000000000} and 2.5 to get \frac{87}{400000000}.
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}