Calculus Examples

Find the Derivative - d/dx 3cos(x)
3cos(x)
Step 1
Since 3 is constant with respect to x, the derivative of 3cos(x) with respect to x is 3ddx[cos(x)].
3ddx[cos(x)]
Step 2
The derivative of cos(x) with respect to x is -sin(x).
3(-sin(x))
Step 3
Multiply -1 by 3.
-3sin(x)
 [x2  12  π  xdx ]