Cos (-17600) =
-0.7660
0.7660
1
0
Sinθ*cosecθ = ____________
180
none
√3
1/2
The value of θ in between 0o and 360o ans satisfying the equaiton tan θ + 1/√3 = 0 is.
θ = 150o and 30o
θ = 120o and 300o
θ = 60o and 240o
θ = 150o and 330o
If sin2 θ= 1/4, the general value of
2 n π ± (-1)n π/6
n π/2 ± (-1)'' π/6
n π± π/6
2 n π ± π/6
If sec2 θ = 4/3, the general value of θ is
n π ± π/6
2 n π ± π/3
n π ± π/3
The value of tan 1o × tan 2o × ... × tan 89o is.
∞
2
1/√2
If sin x + sin2 x = 1 then the value of cos12 x + 3 cos10 x + 3 cos8 x + cos6 is.
3
____________=1+tan2θ
cos2θ
sec2θ
cosec2θ
cot2θ
Sin 115o = ___________
0.9063
0.8063
0.7063
0.6063