Enrhifo (complex solution)
A=\frac{R}{I}\text{ and }\frac{R}{I}=\frac{390}{7}
Datrys ar gyfer R
R=\frac{390I}{7}
A=\frac{390}{7}\text{ and }I\neq 0
Datrys ar gyfer I
I=\frac{7R}{390}
A=\frac{390}{7}\text{ and }R\neq 0
Rhannu
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