$\left(4x+2\right)\left(4x-2\:\right)$

$sin\left(sin^{-1}\left(0.0339999999999999999999\right)\right)$

$\frac{2}{5x}-2\le-\:0$

$\frac{1}{9}x^3+\frac{5}{9}x^3-\frac{6}{9}x^3$

$\frac{1-tan^2\left(x\right)}{1+tan^2\left(x\right)}\:=\:\frac{2}{\cos^2\left(x\right)}-1$

$\left(2-x\right)^{-\frac{1}{2}}$

$\csc\left(y\right)dx=-\sec\:^2\left(x\right)dy$