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OpenStudy (savannatigris):
Simplify using double angle formulas: 2 sin 35° cos 35°.
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terenzreignz (terenzreignz):
You'd do well to recall that \[\Large \sin(2\alpha) = 2\sin(\alpha)\cos(\alpha)\]
OpenStudy (aonz):
btw the double angle formula is in a ratio is 2 to 1. just remember that :) sin4x = 2 sin2x cos2x
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