Question

How do you find the derivative of `sqrt(x^2+2x-1)`?

Answer 1

`d/dx(x^2+2x-1)^(1/2)=1/2(x^2+2x-1)^(-1/2)*(2x+2)`

Explanation:

We may apply the power rule to obtain

`d/dx(x^2+2x-1)^(1/2)=1/2(x^2+2x-1)^(-1/2)*(2x+2)`