(cos x + isin x)(cos 2x + isin 2x)(cos 3x + isin 3x) = cos(x+2x+3x)+ isin(x+2x+3x).How??
Meghendra Agrawal , 6 Years ago
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Trigonometry> (cos x + isin x)(cos 2x + isin 2x)(cos 3x...
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Deepak Kumar Shringi
Last Activity: 6 Years ago
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