$\left|\left(-8\right)\:\cdot\:\left(-3\right)\right|^{25}$

$y:\frac{\left(\tan\theta+1\right)\left(\tan\theta+1\right)-\sec^2\theta}{\tan\theta}$

$c^2<d^2$

$\frac{dr}{dt}=-16t+48$

$ln\left(2-12x\right)$

$\left(1+\cos\left(x+y\right)\right)dx+\left(\cos\left(x+y\right)\right)dy=0$

$-\:\left(1\:\:-\:9\right)\:-\:\left(5\:-\:5\right)\:-\:4\:+\:5$