Question

What is `int (1+ x^2)dx`?

Answer 1

`x+1/3x^3+C`

Explanation:

Since for a continuous function, the integral of a sum is the sum of the integrals, we may write and solve this integral as follows :

`int(1+x^2)dx=int1dx+intx^2dx`

`=x+1/3x^3+C`