Question

if A =30 Sin2A =2tanA /1+tan2A

Answer 1

Given:-
a= 30
sin2A=2tanA/1+tan2A
 
Solution:-A tan2a = tan 60 = √3 
B tan(30) = 1/√3 2tan(30) = 2/√3  
C tan(30) ^2 0.3bar
1-(1/3) 2/3 
B/C 3/√3  
3/√3 * √3/√3 = √3
Therefore the answer is √3