Methods of Integration

Evaluate: $\int \frac{e^{{\tan }^{-1}x}}{1+x^2}dx$

 ${\displaystyle \int \frac{dx}{\sqrt{5-4x-2x^2}}}$  is equal to:

 ${\displaystyle \int \frac{\cos \sqrt{x}}{\sqrt{x}}}dx$ is equal to:

 ${\displaystyle \int \frac{\sin \sqrt{x}}{\sqrt{x}}dx}$  is equal to

Evaluate ${\displaystyle \int \sin 7x\sin xdx}$

The value of  ${\displaystyle \int \sqrt{\frac{1-x}{1+x}}dx}$ would be

Evaluate  ${\displaystyle \int \frac{x^2}{x^2+6x+12}}dx.$

Evaluate:  $\int \frac{\sin 2x}{{(a+b\cos x)}^2}dx$

Evaluate the following integral $\int \frac{x^2}{\sqrt{1-x}}dx$

Evaluate the following

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

Evaluate  $\int \frac{{\sin }^{-1}\sqrt{x}-{\cos }^{-1}\sqrt{x}}{{\sin }^{-1}\sqrt{x}+{\cos }^{-1}\sqrt{x}}dx$

Value of  ${\displaystyle \int \frac{{(\cos 2x)}^{\frac{1}{2}}}{\sin x}dx}$ is equal to