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Mathematics 11 Online
OpenStudy (eric_d):

Show that sin 3 theta = 3 sin theta - 4 sin^3 theta. Hence, show that sin 3 theta- cos 2 theta = (1-s)(4s^2+2s-1), where s = sin theta

OpenStudy (eric_d):

@ganeshie8

OpenStudy (eric_d):

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