The value of log tan 1o + log tan 2o + ... + log tan 89o is.
1
0
tan 1o
tan 89o
If sec 4 θ - sec 2 θ = 2, the general value of θ is
(2 n+1) π/4
(2n+1) π/10
n π + π/2 or 2nπ/5 + π/10
n π + π/5
If sin x + sin2 x = 1 then the value of cos12 x + 3 cos10 x + 3 cos8 x + cos6 is.
2
3
If tan 2 θ + tan θ = 1, the general value of θ is
(n+ 1/2 ) π/3
(n+ 1/2 ) π
(2n + 1/2 ) π/3
(2 n- 1/2 ) π/3
1 - cos2θ - sin2θ = ___________
The general value of θ which satisfies tan θ = -1 and cos θ = 1/√2 the equations is
n π + 7 π/4
n π + (-1)n 7π/4
2 n π + 7 π/4
tan(180-θ) = ____________
-1
none
sin 120o= __________
1/2
1/√2
3/2
None
Cosecθ = 1/_
Cosθ
Sinθ
tanθ
Cotθ
If equaiton 2 sec 2 α = tan β, then one of the value of α + β is.
/2
