The value of x for the maximum value of√3 cos x + sin x, is
30o
45o
60o
90o
The maximum value of Sinθ Cosθ is
1
0
-1/2
1/2
If sin θ + cosec θ = 2, then sin2 θ + cosec2 θ is equal to
2
4
6
The value of cos 15o is
The expression tan2∝+ cot2 ∝ is
≥ 2
≤ 2
≥ -2
= 2
If cos θ = 1/2 (x + 1/x), then 1/2 (x2 + 1/x2) is equal to
sin 2 θ
cos 2 θ
tan 2 θ
sec2 θ
If sin (∝ - β) = 1/2 and cos (∝ + β) = 1/2, where ∝ and β are positive acute angles, then:
∝ = 45o
β= 15o
∝= 15o, β = 45o
∝ = 60o, β = 15o
The value of 1+ cos 56o + cos 58o - cos 66o is equal to
2 cos 28o cos 29o cos 33o
4 cos 28o cos 29o cos 33o
4 cos 28o cos 29o sin 33o
2 cos 28o cos 29o sin 33o
(tan 7o) (tan 23o) (tan 60o)(tan 67o)(tan83o) is
7
√3
The value of cot (45o + θ) cot (45o - θ) is:
-1
∞
