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Asked by Bob

Find the imaginary part of (cos12 degrees +i*sin12 degrees +cos48 degrees +isin48 degrees)^6.
9 years ago

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Answered by Steve
if you use your sum-to-product formulas, you will see that the results is a real number.

imaginary part is zero
9 years ago
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Find the imaginary part of (cos12 degrees +i*sin12 degrees +cos48 degrees +isin48 degrees)^6.

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