Question

Integrate the following function w.r.t x:
a) X3 + √x
b)(sinX - 2cosX)

Answer 1

(a)

$$\int (x^3+\sqrt{x})dx=\frac{x^4}{4}+\frac{2}{3}\sqrt{x^3}+C$$

(b)

$$\int (\sin{x}-2\cos{x})dx=-\cos{x}-2\sin{x}+C$$