$3x-4\le x+8$

$\sin\left(x-\pi\right)+\cos\left(2x\right)=0$

$\int\:\frac{e^x}{\sqrt{e^{2x}+e^x+1}}dx$

$3^4.6^2.6^8.3^2$

$2\sin\left(\frac{\pi}{4}\right)\cos\left(\frac{\pi}{4}\right)\left(\sin^2\frac{\pi}{6}+\cos^2\left(\frac{\pi}{6}\right)\right)$

$\frac{dn}{dt}+n=nte^{t+2}$

$\frac{\left(-48\right)}{\left(-12\right)}$