$2\cdot\sqrt{1-\sin\left(t\right)^2}$

$\frac{\cot\left(x\right)\sec\left(x\right)}{\sin\left(x\right)}=\csc^2\left(x\right)$

$ln\left(x\right)-ln\left(x+2\right)=ln\left(6\right)$

$2x^2+4x+4$

$\left(xy+y\right)dx+\left(x^2-4x+3\right)dy=0$

$\left(4s^3\cdot3s\cdot s^3\right)^2$

$\left(2a+x\right)\left(c+x\right)$