$\int\frac{\ln\left(x\right)^2}{x\left(4-\ln\left(x\right)^2\right)^{\frac{3}{2}}}dx$

$9x^4y^2+12x^2y+4x^2$

$\frac{d^2}{dx^2}\left(e^{-3x}\right)$

$\sin^2\left(x\right)-\cos^2\left(x\right)+3$

$3x+6<-7$

$\frac{sin\left(x+\frac{\pi\:}{2}\right)}{sin\left(\pi\:-x\right)}=cot\:x$

$-x^3+29x^2=0$