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Evaluate: \(sin^{-1}(sin\frac{3\pi}{5})\). |
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Answer» Given sin-1 (sin 3π/5) We know that sin-1 (sin θ) = π – θ, if θ ∈ [π/2, 3π/2] = π – 3π/5 = 2π/5 ∴ sin-1 (sin 3π/5) = 2π/5 |
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