COLUMN-I		COLUMN-II
A)	$\int \frac{\cos x}{\cos 3x}dx$	P)	$-\frac{1}{\tan x+2\sec x}+c$
B)	$\int \frac{{\cos }^{3}x}{{(1+{\sin }^{2}x)}^2}dx$	Q)	$-\frac{1}{2\sqrt{3}}\ln \left|\frac{\sqrt{3}\tan x-1}{\sqrt{3}\tan x+1}\right|+c$
C)	$\int \frac{dx}{4{\sin }^{2}x+{\cos }^{2}x}$	R)	$\frac{1}{2}{\tan }^{-1}\left(2\tan x\right)+c$
D)	$\int \frac{1+2\sin x}{{(2+\sin x)}^2}dx$	S)	${(\sin x+\cos ecx)}^{-1}+c$