$$\pi Rl$$

$$\pi R^2l$$

$$2\pi Rl$$

$$\pi Rh$$

$$\pi Rl\ +\ \pi R^2$$

$$2\pi Rl\ +\ \pi R^2$$

$$2\pi Rl\ +\ 2\pi R^2$$

$$2\pi Rh$$

$$\pi Rh$$

$$2\pi R^2h$$

$$\pi R^2h$$

$$2\pi Rh\ +\ \pi R^2$$

$$2\pi Rh\ +\ 2\pi R^2$$

$$\pi Rh\ +\ 2\pi R^2$$

$$\pi Rh\ +\ \pi R^2$$

$$\pi R^2h$$

$$4\pi Rh$$

$$\frac{4}{3}\pi R^2h$$

$$4\pi R^2h$$

$$4\pi R^2$$

$$2\pi R^2$$

$$\frac{4}{3}\pi R^2$$

$$\frac{4}{3}\pi R^3$$

$$4\pi R^2$$

$$4\pi R^3$$

$$\overrightarrow{a\ }=\left(1;1;0\right)$$

$$\overrightarrow{a\ }=\left(0;1;0\right)$$

$$\overrightarrow{a\ }=\left(1;0;0\right)$$

$$\overrightarrow{a\ }=\left(0;0;1\right)$$

$$f\left(x\right)=\ \frac{1}{2}e^{2x}$$

$$f\left(x\right)=\ e^{2x}$$

$$f\left(x\right)=\ e^{x^2}$$

$$f\left(x\right)=\ 2e^{2x}$$

$$\frac{u'.u}{u^2}$$

$$\frac{u'.u}{2u}$$

$$\frac{u'.u}{\left|u\right|}$$

$$1\ -\ \sin^2x$$

$$1+\sin^2x$$

$$1+\sin x$$