$3\sin\left(3x\right)=2$

$\int_0^{2\cdot\pi}\left(\frac{\sin\left(x\right)}{2\cdot\pi}\right)dx$

$-\sqrt{49}\left(-0.5\cdot4\cdot\frac{-1}{2}+1\left(20\cdot0.25\right)\right)$

$15-3x<21$

$\int y\left(4-y^2\right)^{\frac{3}{2}}dy$

$p^2+11p+22$

$3\cot\left(x\right)^3=1$