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P(z) be a variable point in the Argand p...

P(z) be a variable point in the Argand plane such that `|z|`=minimum `{|z−1, |z+1|}` , then `z+barz` will be equal to a. -1 or 1                                    b. 1 but not equal to-1 c. -1 but not equal to 1              d. none of these

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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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