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→Extension of [[Euler's formula]]: Spelling/Grammar Check, typos fixed: Therefore → Therefore,
:<math>\left( e^{ix} \right)^n = e^{inx} \,</math>
:<math>\left( e^{ix} \right)^n = e^{inx} \,</math>
Therefore from [[Euler's formula]]:
Therefore, from [[Euler's formula]]:
:<math>e^{i(nx)} = \cos(nx) + i\sin(nx)\,</math>
:<math>e^{i(nx)} = \cos(nx) + i\sin(nx)\,</math>
[[Category:Mathematics]]
[[Category:Mathematics]]