Datrys ar gyfer n
n=4m^{2}-1
Datrys ar gyfer m
m=\frac{\sqrt{n+1}}{2}
m=-\frac{\sqrt{n+1}}{2}\text{, }n\geq -1
Rhannu
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n=4m^{2}-1
Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.
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