a-bi-2-i-1-i-find-2-a-2-b-2-

Question Number 61886 by aliesam last updated on 10/Jun/19

a + b i = \frac{2 + i}{1 - i}

f i n d

2 (a^{2} + b^{2})

Answered by MJS last updated on 10/Jun/19

\frac{2 + i}{1 - i} = \frac{1}{2} + \frac{3}{2} i

2 (a^{2} + b^{2}) = 5

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