The minimum value of 5 sin 2 θ + 4 cos 2 θ is
1
2
3
4
If cos θ = -5/12 in which quadrant does θ lie ?
I quadrand
II quadrand
III quadrand
II or III
1+tan2θ =
cos2θ
sec2θ
cosec2θ
cot2θ
If sec2 θ = 4/3, the general value of θ is
2 n π ± π/6
n π ± π/6
2 n π ± π/3
n π ± π/3
Sinθ*cosecθ =
0
180
None
If 2 cos2x + 3 sin x -3 = 0, 0≤ x,≤1800, then x =
300, 900,1500
600,1200,1800
00,300,1500
450, 900,1350
Sin 90o =
∞
The value of cos 1o cos 2o cos 3o .... cos 100o =
-b
None of these
1 - cos2θ - sin2θ =
If √3 sec θ +2 = 0 , the general value of θ is
2 n π ± 2 π/3
2 n π ± 5 π/6