Evaluate
\frac{15}{y^{2}}
Differentiate w.r.t. y
-\frac{30}{y^{3}}
Share
Copied to clipboard
15\times 1y^{-2}
Calculate x to the power of 0 and get 1.
15y^{-2}
Multiply 15 and 1 to get 15.
\frac{\mathrm{d}}{\mathrm{d}y}(15\times 1y^{-2})
Calculate x to the power of 0 and get 1.
\frac{\mathrm{d}}{\mathrm{d}y}(15y^{-2})
Multiply 15 and 1 to get 15.
-2\times 15y^{-2-1}
The derivative of ax^{n} is nax^{n-1}.
-30y^{-2-1}
Multiply -2 times 15.
-30y^{-3}
Subtract 1 from -2.
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}