1. Differentiate each of the following using the power rule. a) y = 5x + 2x+5 b) y = 6x2 +6 c) f(x) = 3x + 11x-25 - d) y = 4 x5-2x713+1 18 dy 2. Find for each of the following using "first principles": /12 dx a) y = x+3 b) y=x -3 X+1 c) y = x+12x+4 3. Use the rules to differentiate the following: a) y = (6x + 1) (2x+11) 3x+4 b) y=- x+2 c) y = (2x+5) (2x + 5) d) y = (5x + 1)3 (7x+2)5 e) y = (2x5+ 5) 12 /15