$\int\frac{\left(4sin\left(x\right)\right)}{3+cos\left(x\right)}dx$

$\left(1\right)^5-4\left(1\right)^4+10\left(1\right)^2-\left(1\right)-6$

$\int6x^2e^{-9x}dx$

$8-7\cos\left(x\right)=6\sin^2\left(x\right)$

$\frac{\left(49m^2n-21m^6n^2\right)}{7m^2n^4}$

$e^{-\frac{1000}{5000}}$

$2a-\sqrt{3b}$