3. (14 pts) MORE POWER TO YOU. a. (i) Recall that (a + b)? - a? + 2ab + 62. Expand (x 4 h) - ((x 1 h)?) by squaring (2 + h)2. (ii) Use the limit definition f'(x) - lim /Eth) /2 to compute f' (x) for f(x) = x. Verify that h-+0 this agrees with the Power Rule. b. Now let f(x) - . Use the limit definition f'(x) - lim Lath)-12 to compute f'(x) for r / 0. h-0 Verify that this agrees with the Power Rule