$\frac{2\left(a^2b^{-1}\right)^2}{4\left(3a\right)^{-5}}$

$\lim_{f\to\infty}\left(\frac{e^{2f}-1}{\sin\left(f\right)}\right)$

$y^2dy-3x^5dx=0$

$\left(-12\right)\:+\:\left(-11\right)\:-\:\left(+10\right)\:-\:\left(-3\right)$

$\lim_{x\to\infty}\frac{2^x}{\sqrt{2+2^{2x}}}$

$\left(5ab-3\right)\left(5ab+3\right)$

$\frac{d}{dx}y=x^4e^x$