$\lim_{x\to2.001}\left(\frac{x^2-5x+6}{x-2}\right)$

$y\cdot\frac{dy}{dx}=\left(\frac{x^2\cdot e^x}{e^{y\cdot2}}\right)$

$\int\left(4x^3\left(x^4-3\right)\right)dx$

$\int_0^5\frac{\sqrt{x^2-9}}{x^2}dx$

$\int7xcos5xdx$

$5.6\sqrt[2]{6}+0.08\sqrt[4]{6}+5.25\sqrt[4]{6}$

$-7\cdot21$