$$\sqrt{64b}^8$$

$$x-0.25y=2025.7$$

$$6sinxcosx=2$$

$$\int\left(\sqrt{x}-3\right)\left(\sqrt{x}+1\right)^{-1}dx$$

$$\left(2nc\frac{1}{2}\right)^2$$

$$\lim_{x\to4}\left(\frac{x}{4}\right)^{\frac{1}{x-4}}$$

$$2\sin\left(2x\right)\cos\left(x\right)=4\sin\left(x\right)-\sin^3\left(x\right)$$