If 0 = 30°, find the ratio 2 sin 0: sin 2 0.
Answer :
θ = 30°
2 sin θ: sin 2θ = 2sin 30°: sin(2×30°)
= 2 sin 30°: sin 60°
= 2 sin 30°/sin 60°
Hence,
2 sin θ: sin 2θ = 2: √3.
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