$-2\:\left(\:10+\:\left(-8\right)\:\right)$

$-27+x=47$

$\int_{\frac{1}{12}}^{\frac{1}{6}}3sen\left(2\pi x\right)-4csc^2\left(2\pi x+\frac{\pi}{6}\right)dx$

$\sqrt{18+3}$

$\frac{\left(x+y\right)^2-\left(x+y\right)}{xy}^2$

$\log_{16}\left(x\right)=\frac{1}{2}$

$cot^2x+4cscx=-5$