$\frac{10x^{12}y^{15}z^{-10}}{26x^6y^{20}z^{-3}}$

$8\tan x-3\cos x=0$

$3\sin\left(x\right)-3\sin\left(x-30\right)+\sin\left(x+30\right)$

$\int\left(x^{\frac{1}{2}}\tan\left(x^{\frac{3}{2}}\right)\right)dx$

$5bqz+qzb$

$\int x^{-\frac{5}{7}}dx$

$\lim_{x\to\infty}\left(\frac{4x-1}{\sqrt{x}^2+2}\right)$