As we have to find the value of
Let, y =
As we know that
∴ y = tan-1[2sin(2×30°)]
⇒ y = tan-1[2sin 60°]
⇒ y = tan-1[2×(√3/2)] [∵ sin 60° = √3/2]
∴ y = tan-1[√3] = 60°
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