$3x^2y-7xy^2+6x^2y+4xy^y$

$\left(\tan\left(x\right)-1\right)\left(\csc\left(x\right)-2\right)=0$

$y=2\sin\left(3x-90\right)+1$

$\int_0^{\infty}\left(\frac{ln\left(x\right)}{x^{k+1}}\right)dx$

$\int\left(4x-4\right)\left(9-4x+2x^2\right)^3dx$

$18+12:\left(-\left(-8\right)+3x\left(-2\right)\right)$

$log5\left(10x+15y\right)$