$\left(x-1\right)^2\left(x+1\right)\left(x-3\right)^3$

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

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

$\frac{\left(1-p\right)^2}{p}=1.72$

$9y^2+72y$

$\frac{1}{sin\:a}=csc\:a$

$\frac{\sqrt{36x^4}}{25y^{10}}$