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

$\:\int3x\:\csc^2\left(2x\right)dx$

$\frac{d}{dx}\left(\left(sinx\right)^{4x^2+3x-1}\right)$

$\lim_{x\to1}\left(\frac{sen\left(1+y\right)}{\left(1+y\right)}\right)$

$a^7b^3c^4:\:a^3b^2c$

$\int_0^2\left(3x^2ln\left(x\right)\right)dx$

$2\log\left(x\right)-\log\left(2x-10\right)-1=0$