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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 PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  3. P(z) be a variable point in the Argand plane such that |z|=minimum {|z...

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  5. Prove that the equation Z^3+i Z-1=0 has no real roots.

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  14. If sintheta,costheta be the roots of a x^2+b x+c=0 , then prove that b...

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  15. Express the following complex numbers in a+i b form: ((3-2i)(2+3i))/((...

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