**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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