Question

If A = 60° verify that: tan2A = 2tanA÷ 1- tan²A.

Answer 1

tan2(60°)=2tan60°÷1-tan^2(60°)
tan120°=2√3÷{1-(√3)^2}
-√3 =2√3/(-2)
-√3. = -√3
i hope this will help u