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KVPY 2015 #1

Algebra Level 4

If z is a complex number satisfying \(\displaystyle | z^3 + z^{-3} | \leq 2\), then maximum possible value of \(\displaystyle | z + z^{-1}|.\)

More KVPY Question

\[2\] \[\sqrt[3]2\] \[2\sqrt2\] \[1\]

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Excel in math and science

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by Akhil Bansal

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