$\int\:\frac{1}{4}\:dx$

$3x-\int sin^25xdx$

$\sqrt{-16\cdot\left(-1\right)}$

$\int\:\:x^{-4}sec^2\left(x^{-3}+9\right)\left[\sqrt[3]{tan\left(x^{-3}+9\right)}\right]dx$

$\frac{\sqrt{a}-\left(\sqrt{a}\cdot\:\sqrt{1}\right)}{\sqrt{a}+\left(\sqrt{a}\cdot\:\sqrt{1}\right)}$

$sec\left(-\pi\right)+csc\left(-\frac{\pi}{2}\right)$

$5\left(2x-1\right)^2$