$\int\frac{\ln\left(x\right)+2}{2\sqrt{x}}dx$

$-0,23+1$

$\left(6-9\cdot z\right)^2$

$\frac{dy}{dx}=\frac{3y^2}{x+2}$

$\left(+7\right)-\left(-12\right)+\left(-1\right)$

$\frac{d}{dx}7x^{-3}+x$

$\sin\left(\frac{\pi}{12}\right)\cos\left(\frac{\pi}{4}\right)+\cos\left(\frac{\pi}{12}\right)\sin\left(\frac{\pi}{4}\right)$