$8n-4$

$-\left(-76\right)-\left(+89\right)$

$\frac{7324.38}{46.52}$

$\int_0^{\infty}\left(6e^{-3x}\right)dx$

$\left(\csc\left(x\right)^2-1\right)\left(\tan\left(x\right)^2+1\right)=\csc\left(x\right)^2$

$\log_{1.5}\left(2\right)$

$\tan\left(teta\right)=-\frac{\sqrt{6}}{3}$