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TN XII Math
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Complex Numbers
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Q)
If $x +\large\frac{1}{x} = $$2\; cos\;\theta $ prove that $x^{n} -\large \frac{1}{x^{n}}= $$2i\; sin\;n\theta $
where
n
∈
N.
This is the second part of the multi-part question Q7.
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