Question
2 × Tan 30° / (1 + Tan2 30°)
equals:ÂSolution
2 × Tan 30° / (1 + Tan2 30°) = 2 x (1/√3)/(1 + (1/√3)2) = 2 x (1/√3)/(1 + (1/3)) = √3/2 = sin 60°
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