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If |z^2-3|=3|z| , then the maximum valu...

If `|z^2-3|=3|z|` , then the maximum value of `|z|` is a.`1` b. `(3+sqrt(21))/2` c. `(sqrt(21)-3)/2` d. none of these

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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  3. If |z^2-3|=3|z| , then the maximum value of |z| is a.1 b. (3+sqrt(...

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  15. If |z1/z2|=1 and arg (z1z2)=0 , then a. z1 = z2 b. |z2|^2 = z1*z2 ...

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  19. If the inequality (m x^2+3x+4)//(x^2+2x+2)<5 is satisfied for all x i...

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  20. If |(z-2)//(z-3)|=2 represents a circle, then find its radius.

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