Question

What is the derivative of (1+x^2)-1?

Answer 1

`d/dx[1+x^2-1]=d/dx[x^2]=2x`

Explanation:

show below

`d/dx[1+x^2-1]=d/dx[x^2]=2x`

Note that

`d/dx[x^n]=n*x^(n-1)`