$csc^{-1}x=\frac{1}{sin\left(x\right)}$

$x\:\frac{dy}{dx}+2y\:=\:x^4$

$\left(4t-2\right)\left(4t-6\right)$

$14.2t-25.2=3.8t+26.8$

$\frac{\cos\left(x\right)+\sin\left(x\right)\cdot\tan\left(x\right)}{\sin\left(x\right)\cdot\sin\left(x\right)}$

$9\left(y-3\right)^2-\left(x-2\right)^2$

$\left(-5.683\right)\cdot4$