$\left(3x^{2}-2\right)\cdot\left(3x^{3}+7\right)$

$\int\frac{1}{\tanh x}dx$

$\left(3^2\cdot7^4\right)^5$

$\frac{p}{5}-2<1$

$\sec\left(x\right)dy=x\cos\left(y\right)dx$

$-\frac{\left(cos\left(x\right)\cdot sin^3\left(x\right)\right)}{4}-\frac{\left(3\:cos\left(x\right)\:sin\left(x\right)\right)}{8}$

$\frac{dy}{dx}=\frac{1}{e^x+1}$