$dz=-w\left(2z+1\right)dw$

$\lim_{x\to\infty}\left(\frac{\sqrt{36x^2-100}}{5-x}\right)$

$\left(x^3-6\right)^3$

$-\left(-1+cos^2\right)\cdot\csc=1$

$\lim_{x\to\infty}\left(\arctan\left(\frac{\sqrt{3x}-2}{x+\sqrt{3}}\right)\right)$

$\left(5n+4\right)\left(2n-3\right)$

$\frac{4^2}{4}$