alleryStart learning →If sinθ = 1/2 with θ acute, what is the value of sin 3θ − 3 sinθ?
A−1/2
B1/2
C−1
D1
Answer & Solution
Correct answer: A. −1/2
Since sin3θ = 3sinθ − 4sin³θ, the difference is −4sin³θ = −4 × 1/8 = −1/2.
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