2 tan 30/1-tan^2 30
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Step-by-step explanation:
Given:-
- 2 tan 30/1-tan^2 30
Solution :-
=> 2 tan 30/(1+tan^2 30)
=> 2(1√3)/(sec^2 30)
=> 2/√3/(2/√3^2)
=> 2/√3/(4/3)
=> √3/2. ( √3/2 = cos 30° )
= cos 30
Hence Answer is Cos 30°
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