$\frac{d}{dy}\left(xz-z^2+\ln\:\left(z\right)=x^2y+y\right)\:$

$3\left(-14\right)+\left(-4\right)\left(-3\right)-4\left(6\right)$

$\lim_{n\to0}\left(\frac{2n+1}{1-3\sqrt{n}}\right)$

$2sin^2x+3sinx+1$

$\lim_{x\to\infty}\left(\frac{ln\left(x+2\right)}{\log\left(6\right)x}\right)$

$\frac{\cos\left(x\right)-2}{-3-2\cos\left(x\right)}=\frac{1}{3}$

$\int\cos^44x\cdot\sin^34x$