$$\csc\left(x\right).\tan\left(x\right).\cos\left(x\right)-\csc^2\left(x\right)$$

$$\left(-2p^5y^4\cdot\:3p^3y^2\right)^2$$

$$e^y\cdot y'=1+e^y$$

$$y^2-6y+16$$

$$.5m+.25=\frac{1}{2}$$

$$\left(3x^2-7xy^3\right).\left(3x^2+7xy^3\right)$$

$$\int\frac{x^2}{\sqrt{x^6-1}}dx$$