ABSTRACT
In Problems 12 to 15, determine the indefinite integrals.
12. (a) ∫
(x2 + 4)dx (b) ∫ 1
x3 dx (4)
13. (a) ∫ ( 2√
x + 3√x
) dx (b)
∫ 3 √ t5dt (4)
14. (a) ∫ 2
3√ x2
dx (b) ∫ (
e0.5x + 1 3x
− 2 ) dx
(6)
15. (a) ∫
(2+ θ)2 dθ
(b) ∫ (
cos 1 2 x + 3
x − e2x
) dx (6)
Evaluate the integrals in Problems 16 to 19, each, where necessary, correct to 4 significant figures.
