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Question
The value of sin (2 sin–1 (.6)) is ______.
Options
.48
.96
1.2
sin 1.2
Solution
The value of sin (2 sin–1 (.6)) is .96.
Explanation:
Let sin–1 (.6) = θ
i.e., sin θ = .6
Now sin (2θ) = 2
sinθ cosθ = 2 (.6) (.8)
= .96
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