If f(z)=(7-z)/(1-z^2) , where z=1+2i , t...

If `f(z)=(7-z)/(1-z^2)` , where `z=1+2i ,` then `|f(z)|` is `(|z|)/2` (b) `|z|` (c) `2|z|` (d) none of these

`|z|/2`

`|z|`

2|z|

None of these

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DISHA PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS -Exercise -2 : Concept Applicator

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