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CBSE Class 11 Complex Numbers — practice questions

4 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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The conjugate of $z = 3 - 4i$ is:The modulus of $z = 5 + 12i$ is:Using De Moivre's theorem, $(\cos\theta + i in\theta)^4$ equals:The number of distinct $n$th roots of a non-zero complex number is: