$\frac{\sin\left(5\right)}{\csc\left(5\right)}+\frac{\cos\left(5\right)}{\sec\left(5\right)}=1$

$\sec^3\left(x\right)\cdot\tan\left(x\right)-\tan^3\left(x\right).\sec\left(x\right)=\sec\left(x\right).\tan\left(x\right)$

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

$\left(96\right)\left(87\right)$

$\frac{d^2}{dx^2}\left(x^3+3x^2y-6xy^2+2y^3=0\right)$

$81-b^2$

$345+214$