$3x-6>2x-12$

$\int_0^{\frac{\pi}{6}}\left(\sqrt{1+tan^2x}\right)dx$

$\sqrt[4]{\left(25m\right)^2}$

$\frac{1000000000000}{0}$

$\int\frac{5x^2+20x+6}{\left(x^2-x\right)\left(x^2+4\right)}dx$

$\cos\left(x\right)^2+4\sin\left(x\right)^2\cdot\cos\left(x\right)^2=1$

$36-121c^2-132c$