$$\lim_{x\to0}\left(\frac{sin\left(5t\right)}{t}\right)i+\left(3e^{2t}\right)j+\left(\frac{3t^2}{e^t}\right)k$$

$$\left(5x^2\right)^2$$

$$3x+3x+3x+3x+3x+3x$$

$$32\cdot25$$

$$x^2+0.000018x-0.00000000369$$

$$\frac{2x^2-3}{x^3+6x^2}$$

$$7a^2+7a^2$$