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
View Solution FreeMore Trigonometric Equation Questions
sin2- sin2 = .........If solution of the equation 3cos2θ - 2√3 sin θ cos θ - 3sin2 θ = 0 are nπ + π/r and ...The intersection of the spheres x2 + y2 + z2 + 7x - 2y - z = 13 and x2 + y2 + z2 - 3x + 3y + 4z = 8 is the same as the i...If A + B + C = π then sin 2A + sin 2B + sin 2C =...If the lines and intersect each other, then (λ + λ) is equal to -...