$2\cos\left(5\pi x\right)-\sqrt{3}=0$

$\frac{\sin\left(o\right)-\sin\left(b\right)}{\cos\left(0\right)-\sin\left(b\right)}$

$3x^2-11x+4$

$9-9\left(n+7\right)$

$\tan\left(x\right)\cdot\csc\left(-x\right)\cdot\cot\left(-x\right)$

$\left(3b^2-2\right)^3$

$x^2+x^5-2x-x^3$