Evaluate the definite integrals given below. (9x + 4x) dx (a) 1 (9x2 109x+4x L (b) (8x1/3

Evaluate the definite integrals given below.

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(9x + 4x) dx (a) 1 (9x2 109x+4x L (b) (8x1/3 + 4x +4x-1/3) dx (9x + 4x) dx = [3x + 2x] = (3(2)3 + 2(2)) - (3(1) +2(1)) = 32-5=27 (8x1/3 + 4x-1/3) dx = [6x4/3+6x/3]8 = 6 [(8)4/3 + (8)/3] 6 [(1)4/3 + (1)/3] = = 120 12 = 108 - (c) e1/3 dt L' e1/3 dt = 3 = 31/3-3=3e\/ 1) (d) 20e St dt (e) f (5 + x) dx 2oc* dt = -46| -4e - (4e) = 4(1 ) 20e [{"(5 + x) dx = { (5 + x)] = { [(7) (5)] = {(218) 72.67