$cos\left(100^{\circ\:}+x\right)=0$

$\left(3+-2\right)^0+\left(\sqrt{4}-3\right)^2$

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

$2^3\cdot2$

$4\sin\left(t\right)^2$

$\frac{senx}{tanx}+tanx$

$4z\:-\:2x\:-\:\left[\:-\:\left(3z\:+\:4\:y\:2\:-\:x\right)\:+\:6x\:\right]\:-\:10z\:\:-y\:^2$