Question

Evaluate tan2θ for θ = 60°.

Answer 1

Answer:

tan 2x = 2 tan x/1 - tan²x

x = 60° therefore tan x = √3

tan 2x = 2×√3/(1 - √3×√3)

tan 2x = 2√3/(1-3)

=> 2√3/-2

=> -√3