Question 7
sin 3x + sin 2x - sin x = 4sin x cos x 2 cos 3/2 x Find sin x 2 , cos x 2 and tan x 2 in each of the following :
SOLUTION
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sin 3x + sin 2x - sin x = 4sin x cos x 2 cos 3/2 x Find sin x 2 , cos x 2 and tan x 2 in each of the following :