1.

(2*tan(30^circ))/(-tan(30^circ)^2 %2B 1)

Answer»

2Tan30°/1-Tan^30°

=2×1/√3/1-(1/√3)^

=2/√3/1-1/3

=2/√3/3-1/3

=2/√3/2/3

=2/√3×3/2

=√3

=Tan60°

tan 60



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