$\frac{1}{csc\left(x\right)}-cot\left(x\right)-\frac{1}{\left(sin\left(x\right)\right)}$

$\lim_{x\to\frac{\pi}{4}}\left(\frac{\tan3x}{\sin2x+\sec^2x}\right)$

$8.6-.009$

$\int x^2\sqrt[3]{2-5x^3}dx$

$6mx^2-4m^2x^5$

$-x^2+40=3x$

$\frac{dy}{dx}=\cos\left(2x+y+3\right)$