Question 3 A. Evaluate the following limits: i. lim (3 + x)2 - 9 X +0 X ii. lim x2 - 25 X + 5 5-X iii. lim 5x3 + 6x2 + 2 x 1 0o 2x~ + 6x + 1 B. Differentiate the following functions with respect to 'x' i. y = (3x2 + 2x) (4x2 + 4x) ii. y = (3x2 - 5)5 iii. y = 6x2 - 4x 5x2 - 6