List of top Mathematics Questions on Integration asked in JKCET

The integral $ \int \frac{x e^x}{(1+x)^2} dx $ is equal to
The integral $ \int \sqrt{x^2 + a^2} \, dx $ is equal to
The value of $ \int_0^{\frac{\pi}{2}} \frac{\tan x}{\tan x + \cot x} \, dx \text{ is} $