2(1 - 2 sin^2 7theta) sin 3 theta is equal to
(1) sin 17 theta - sin 11 theta (2) sin 11 theta - sin 17 theta
(3) cos 17 theta - cos 11 theta (4) cos 17 theta + cos 11 theta
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Yes thos aneswer is eight you no this answer yes
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