$\frac{a^6+b^6}{a^2+b^2}$

$\frac{d}{dx}\left(xy^3=125\right)$

$\lim_{x\to\infty}\left(\left(1-\frac{1}{\sqrt{3}x}\right)^x\right)$

$\left(n^4\right)^{\frac{3}{2}}$

$\sin\left(x\right)^2\tan\left(x\right)$

$\cot x^2\csc\left(x\right)=\sin\left(x\right)$

$2\left(-2w-1.2+7x\right)$