if sin alpha=1/2 find the value of 3 sin alpha- 4 sin^3 alpha
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2
Substitute value of sin alpha ( 1/2) in the given equation ,
3(1/2) - 4(1/2)³
3/2 - 1/2
2/2 = 1 -Ans
3(1/2) - 4(1/2)³
3/2 - 1/2
2/2 = 1 -Ans
Answered by
1
= 3(1/2) - 4(3*1/2)
= -4.5
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