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OpenStudy (anonymous):
If sin theta - cos theta = 0. Find sin^4 theta + cos^4 theta
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OpenStudy (anonymous):
sin theta - cos theta = 0 ie sin theta = cos theta
OpenStudy (anonymous):
i didnt understand!
OpenStudy (anonymous):
If sin theta = cos theta then sin^4 theta + cos^4 theta = 2 cos^4 theta (or 2 sin^4 theta).
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