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If sinθ = 45 , Find the value of sin3θ

A12/25

B44/125

C64/125

D32/45

Answer:

B. 44/125

Read Explanation:

Solution: Given: sinθ = 4/5 Formula Used: sin3θ = 3sinθ - 4sin3θ Calculation: sin3θ = 3sinθ - 4sin3θ ⇒ sin3θ = 3(4/5) - 4(4/5)3 ⇒ sin3θ = 12/5 - 256/125 ⇒ sin3θ = 44/125 ∴ The answer is 44/125.

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