$\cos\left(0\right)+\sin\left(0\right)$

$\left(3a^2+2ax\right)^2$

$3^3+6^2+2^3$

$\left|\left(-8\right)\right|.\left(+2\right)-\left(+4\right)-\left(-5+\left(+2\right)\right)$

$\lim_{x\to0}\left(\frac{7^{\frac{1}{x}}-2}{4+7^{\frac{1}{x}}}\right)$

$y'\left(t\right)\csc\left(t\right)=\frac{-y^{15}}{14}$

$\left(\frac{2a^{4}\cdot3a}{3a^{2}}\right)^{2}$