$\tan^2a\cdot\sec^2b-\sec^2a\cdot\tan^2b$

$\frac{\left(2\sin\left(x\right)\cdot\cos\left(x\right)+1\right)}{\sin\left(x\right)\cdot\cos\left(x\right)+\cos\left(x\right)}$

$2x\left(x-y\right)$

$\left(-8\right)\:\left(-9\right)$

$\frac{182}{14}$

$\left(\frac{\sqrt{3}}{3}\right)^2+\cos\left(x\right)^2=1$

$x^{\frac{3}{4}}y^{\frac{2}{4}}z^{\frac{1}{2}}$