$\lim_{x\to0}\left(sin\left(2x\right)\right)^x$

$4080\cdot10$

$x^2-4x>77$

$\int\frac{1}{x^2\sqrt{x^2+81}}dx$

$\frac{sin\left(x\right)+tan\left(x\right)}{\left(tan\left(x\right)\right)\left(csc\left(x\right)+cot\left(x\right)\right)}$

$\frac{dy}{dx}y=\left(1-x+x^2\right)^3$

$25m=75$