Datrys ar gyfer r (complex solution)
\left\{\begin{matrix}r=\frac{y}{\cos(\theta )}\text{, }&\nexists n_{1}\in \mathrm{Z}\text{ : }\theta =\pi n_{1}+\frac{\pi }{2}\\r\in \mathrm{C}\text{, }&y=0\text{ and }\exists n_{1}\in \mathrm{Z}\text{ : }\theta =\pi n_{1}+\frac{\pi }{2}\end{matrix}\right.
Datrys ar gyfer r
\left\{\begin{matrix}r=\frac{y}{\cos(\theta )}\text{, }&\nexists n_{1}\in \mathrm{Z}\text{ : }\theta =\pi n_{1}+\frac{\pi }{2}\\r\in \mathrm{R}\text{, }&y=0\text{ and }\exists n_{1}\in \mathrm{Z}\text{ : }\theta =\pi n_{1}+\frac{\pi }{2}\end{matrix}\right.
Datrys ar gyfer y
y=r\cos(\theta )
Graff
Rhannu
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r\cos(\theta )=y
Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.
\cos(\theta )r=y
Mae'r hafaliad yn y ffurf safonol.
\frac{\cos(\theta )r}{\cos(\theta )}=\frac{y}{\cos(\theta )}
Rhannu’r ddwy ochr â \cos(\theta ).
r=\frac{y}{\cos(\theta )}
Mae rhannu â \cos(\theta ) yn dad-wneud lluosi â \cos(\theta ).
r\cos(\theta )=y
Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.
\cos(\theta )r=y
Mae'r hafaliad yn y ffurf safonol.
\frac{\cos(\theta )r}{\cos(\theta )}=\frac{y}{\cos(\theta )}
Rhannu’r ddwy ochr â \cos(\theta ).
r=\frac{y}{\cos(\theta )}
Mae rhannu â \cos(\theta ) yn dad-wneud lluosi â \cos(\theta ).
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