Datrys v=1/3pir^2h

$$v = \frac { 1 } { 3 } \pi r ^ { 2 } h$$

Datrys ar gyfer h (complex solution)

$$\left\{\begin{matrix}h=\frac{3v}{\pi r^{2}}\text{, }&r\neq 0\\h\in \mathrm{C}\text{, }&v=0\text{ and }r=0\end{matrix}\right.$$

Camau ar gyfer Datrys Hafaliad Llinol

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$\frac{1}{3}\pi r^{2}h=v$$

Mae'r hafaliad yn y ffurf safonol.

$$\frac{\pi r^{2}}{3}h=v$$

Rhannu’r ddwy ochr â \frac{1}{3}\pi r^{2}.

$$\frac{3\times \frac{\pi r^{2}}{3}h}{\pi r^{2}}=\frac{3v}{\pi r^{2}}$$

Mae rhannu â \frac{1}{3}\pi r^{2} yn dad-wneud lluosi â \frac{1}{3}\pi r^{2}.

$$h=\frac{3v}{\pi r^{2}}$$

Datrys ar gyfer h

$$\left\{\begin{matrix}h=\frac{3v}{\pi r^{2}}\text{, }&r\neq 0\\h\in \mathrm{R}\text{, }&v=0\text{ and }r=0\end{matrix}\right.$$

Camau ar gyfer Datrys Hafaliad Llinol

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$\frac{1}{3}\pi r^{2}h=v$$

Mae'r hafaliad yn y ffurf safonol.

$$\frac{\pi r^{2}}{3}h=v$$

Rhannu’r ddwy ochr â \frac{1}{3}\pi r^{2}.

$$\frac{3\times \frac{\pi r^{2}}{3}h}{\pi r^{2}}=\frac{3v}{\pi r^{2}}$$

Mae rhannu â \frac{1}{3}\pi r^{2} yn dad-wneud lluosi â \frac{1}{3}\pi r^{2}.

$$h=\frac{3v}{\pi r^{2}}$$

Datrys ar gyfer r (complex solution)

$$\left\{\begin{matrix}r=-\left(\pi h\right)^{-\frac{1}{2}}\sqrt{3v}\text{; }r=\left(\pi h\right)^{-\frac{1}{2}}\sqrt{3v}\text{, }&h\neq 0\\r\in \mathrm{C}\text{, }&v=0\text{ and }h=0\end{matrix}\right.$$

Datrys ar gyfer r

$$\left\{\begin{matrix}r=\sqrt{\frac{3v}{\pi h}}\text{; }r=-\sqrt{\frac{3v}{\pi h}}\text{, }&\left(v\geq 0\text{ and }h>0\right)\text{ or }\left(v\leq 0\text{ and }h<0\right)\\r\in \mathrm{R}\text{, }&v=0\text{ and }h=0\end{matrix}\right.$$