If cos θ = -5/12 in which quadrant does θ lie ?
I quadrand
II quadrand
III quadrand
II or III
1 - cos2θ - sin2θ =
1
2
0
3
____________=1+tan2θ
cos2θ
sec2θ
cosec2θ
cot2θ
If θ =π/4, then 1+ tan 2 θ =
sin 2 θ
cot 2 θ
cosec2 θ
sec 2 θ
If θ = 30o find the value of sin2θ + cos2θ
4
Cos (-17600) =
-0.7660
0.7660
The general solution of sinx - 3 sin 2x+ sin 3x= cosx -3 cos2x + cos 3 x is
n π+ π/8
n π/2+ π/8
(-1)n(nπ/2)+π/8
2nπ+cos-1 (3/2)
Sinθ*cosecθ =
180
None
If A, B, C, D are the angle of a cyclic quadrailater , then cos A + cos B + cos C+ cos D is equal to
2 (cos A + cos C)
2 (cos A + Cos B)
2 (cos A + cos D)
The minimum value of 5 sin 2 θ + 4 cos 2 θ is
