$nhuhj$

$\sqrt[3]{2+5^2}$

$\lim_{x\to0}\left(\frac{\cos\:\left(x\right)\sin\:\left(2x\right)+\cos\:\left(2x\right)\cdot\:\:2\sin\:\left(x\right)}{\sin\:\left(x\right)}\right)$

$\int csc^4\left(\frac{t}{4}\right)dx$

$\left(xy^2+x-7\right)dx+\left(y+x^2y-1\right)dy=0$

$5a+10b+7+5b$

$y^4-2y^3+y^2=0$