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

$1+csc^2x\:cos^2x=csc^2x$

$\frac{dy}{dx}=\frac{\left(x-1\right)}{2y}$

$\lim_{x\to o}\left(cot5xsin10x\right)$

$\frac{d}{dx}\:\frac{3x^2}{\sqrt{n}}+\sqrt{4x}$

$\left(4x^3-9x+8\right)-\left(5x^3+3\right)$

$\int\left(cosx\left(cosx+sinx\right)\right)dx$