- #1

mesa

Gold Member

- 687

- 25

## Homework Statement

f(x)=x^7/2, Find the derivative

## Homework Equations

f'(a)=limit as x approaches a; ((x+h)-x)/h

## The Attempt at a Solution

limit as h approached 0; ((x+h)^7/2-x^7/2)/h

Multiplied by the conjugate with -5/2 as exponent and came up with 2x^5/2, which is incorrect