$59-\left(-19\right)$

$\frac{d}{dx}\sqrt{x}e^{x^2}$

$\int\frac{x^2+132x+132}{x^3-4x}dx$

$x+2>2+x$

$\lim_{x\to-2}\ln\left(6x^2+2\right)$

$\sin\left(-x\right)-\cos\left(-x\right)=-\sin\left(x\right)-\cos\left(x\right)$

$\left(3y^2+y-7\right)\sqrt{\left(\frac{16}{x^2}-1\right)}\frac{dy}{dx}=x^2y^2-x^2$