$\frac{\tan\left(x\right)}{\csc\left(x\right)}+\frac{1}{\sec\left(x\right)}=\sec\left(x\right)$

$\left(37.3-2x\right)^2$

$\lim\:_{x\to\:1}\left(\frac{sen\left(\pi\:\:x\right)}{\log\:\left(x\right)}\right)$

$\frac{\left(m^3\right)^5-\left(n^3\right)^5}{m^3-n^3}$

$-1150+370-1389$

$\left(\frac{1}{2}x^5-\frac{3}{4}y^3\right)\left(\frac{1}{2}x^5+\frac{3}{4}y^3\right)$

$\frac{3x-6}{-10x+7}$