Question

1.    Evaluate :        (𝑥³ + 1

𝑥3

) dx.

Answer 1

$\int(x^3+\frac{1}{x^3})dx=\frac{x^4}{4}+\frac{x^{-2}}{-2}+C=\\ =\frac{x^4}{4}-\frac{1}{2x^2}+C$