tan60°= 2tan30°/1-tan^30°
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Answer:
tan60°=√3
tan30°=1/√3
RHS
2*1/√3 ÷ 1 - (1/√3)^2
2/√3 ÷ 2/3
2/√3 × 3/2
3/√3
√3 = tan60° = LHS
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