plzz solve, it's urgent.............
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sin x = 1/2
but sin 30 = 1/2
hence x=30
3 sin 30 - 4 sin 30
3*1/2-4*1/2
3/2-4/2
-1/2
but sin 30 = 1/2
hence x=30
3 sin 30 - 4 sin 30
3*1/2-4*1/2
3/2-4/2
-1/2
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