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Complex Plane

If z1 and z2 ...

Question

If $z_{1}$ and $z_{2}$ be two complex number, then Re $(z_{1} z_{2})$ =

A

Re

(z_{1}) . R e (z_{2})

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B

Re

(z_{1}) . I m (z_{2})

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C

Im

(z_{1}) . R e (z_{2})

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D

None of these

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Solution

The correct option is D None of these
If $z_{1}$ and $z_{2}$ be two complex number then
$R e (z_{1} z_{2}) = R e (z_{1}) R e (z_{2}) - I m (z_{1}) I m (z_{2})$

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