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Question: Complex number \(\frac{1}{1 + i}\) = z into a + ib form is –...

Complex number 11+i\frac{1}{1 + i} = z into a + ib form is –

A

1+i2\frac{1 + i}{2}

B

1–i2\frac{1–i}{2}

C

1 – I

D

1 + i

Answer

1–i2\frac{1–i}{2}

Explanation

Solution

Sol. z = 11+i\frac{1}{1 + i} × 1–i1–i\frac{1–i}{1–i} =1–i2\frac{1–i}{2}