Questions in indefinite-integration

Select	Question
	The value of $\int{\frac{2\,\,dx}{\sqrt{1-4{{x}^{2}}}}}$ is
	$\int{{{e}^{3\log x}}{{({{x}^{4}}+1)}^{-1}}\,\,dx}$=
	$\int_{{}}^{{}}{\frac{dx}{2\sqrt{x}(1+x)}=}$
	$\int{\text{cose}{{\text{c}}^{4}}x\,dx}=$
	$\int{x{{e}^{{{x}^{2}}}}}dx=$
	If $\int{f(x)\,\,dx=g(x),}$ then $\int{{{f}^{-1}}(x)}\,\,dx$ is equal to
	The value of $\int_{{}}^{{}}{\frac{{{e}^{x}}}{{{e}^{x}}+1}}\,dx$ is
	The value of $\int_{{}}^{{}}{\frac{\sin x-\cos x}{\sin x+\cos x}\,dx}$ is
	$\int_{{}}^{{}}{\frac{{{({{\tan }^{-1}}x)}^{3}}}{1+{{x}^{2}}}\,dx=}$
	$\int_{{}}^{{}}{\sqrt{\frac{1-x}{1+x}}}\ dx=$