Trigonometric EquationHard
Question
If three angles A, B, C are in A.P. then the value of 
is equal to -
is equal to -Options
A.cot 
B.cot B
C.tan B
D.None of these
Solution
Angles A, B, C are in A. P. then 2B = A + C
Now
= cot 
= cot
= cot B
Now
= cot = cot
= cot BCreate a free account to view solution
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