Find the derivatives using the three-step rule. Three-step rule: 1. Write down the expression 2. Divide the result in Step 1 by ??, again simplify 3. Find the limit of the result in Step 2 as ?? approaches zero.

Module 1 Student No.10 1. f(x) =x3 -x 2. y = elx Hint: lim =1 X-0 3. f(x) = sinx sin(x 1 - COBLY) Hint: lim = 1; lim X-0