$$10\sin\left(x\right)-6=4\sin\left(x\right)-9$$

$$\left(x^2y+xy\right)\frac{dy}{dx}=y^2$$

$$\sec^2x\tan^2x-\tan^3x$$

$$x-2\le0$$

$$\frac{2}{x}-\frac{5}{x-4}=1$$

$$\left(-2m\right)\cdot\left(3m^2-2m+1\right)$$

$$\int_{-1}^1\sqrt{9-x^2}dx$$