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Mark the correct alternative in the following:
is equal to
= tan 55°
The value of is
If A + B + C = π, then sec A (cos B cos C – sin B sin C) is equal to
tan 20o + tan 40o + √3 tan 20o tan 40o is equal to
If and then the value of A + B is
If 3 sin x + 4 cos x = 5, then 4 sin x – 3 cos x =
If in a ∆ABC, tan A + tan B + tan C = 6, then cot A cot B cot C =
tan 3A – tan 2A – tan A is equal to
If then is equal to
If and where P and Q both are acute angles. Then, the value of P – Q is
If cot (α + β) = 0, then sin (α + 2 β) is equal to
If then
If sin (π cos x) = cos (π sin x), then sin 2x =
If and then the value of θ + ϕ is
The value of cos (36o – A) cos (36o + A) + cos (54o + A) cos (54o – A) is
If tan (π/4 + x) + tan (π/4 – x) = a, then tan2 (π /4 + x) + tan2 (π /4 – x) =
If then the smallest positive value of B is
If A – B = π /4, then (1 + tan A) (1 – tanB) is equal to
The maximum value of is
If and tan A tan B = 2, then
If tan 69o + tan 66o – tan 69o tan 66o = 2k, then k =
If and then α + β is equal to