A= cos 200- sin 200, B= cos 1000+ sin 1000, C= cos 5π/6+ sin 2π/3 then the ascending order is
A. A,C,B
B. A,B,C
C. B,C,A
D. C,B,A
16 cos5 θ=
A. cos 5θ+5 cos 3θ+10 cosθ
B. cos 5θ-5 cos 3θ+10 cosθ
C. cos 5θ+5 cos 3θ-10 cosθ
D. cos 5θ-5 cos 3θ-10 cosθ
27. Cos3 θsin5 θ=
A. sin 8θ-2sin 6θ-2sin 4θ+6sin 2θ
B. sin 8θ+2sin 6θ+2sin 4θ+6sin 2θ
C. cos 8θ-2cos 6θ-2cos 4θ+6cos 2θ
D. cos 8θ+2cos 6θ+2cos 4θ+6cos 2θ
64cos7 θ=
A. cos 7θ-7cos 5θ+21cos 3θ+35cos θ
B. cos 7θ-7cos 5θ-21cos 3θ-35cos θ
C. cos 7θ-7cos 5θ+21cos 3θ-35cos θ
D. cos 7θ+7cos 5θ+21cos 3θ+35cos θ
32cos4 θ.sin2 θ=
A. 2+2cos 2θ-2cos 4θ-cos 6θ
B. 2-2cos 2θ-2cos 4θ-cos 6θ
C. 2+2cos 2θ+2cos 4θ-cos 6θ
D. 2+2cos 2θ+2cos 4θ+cos 6θ
27 cos8 θ=
A. cos 8θ+8cos 6θ+28cos 4θ+56cos 2θ+35
B. cos 8θ+8cos 6θ-28cos 4θ+56cos 2θ+35
C. cos 8θ-8cos 6θ+28cos 4θ-56cos 2θ+35
D. cos 8θ+8cos 6θ-28cos 4θ-56cos 2θ+35
128 sin8 θ=
A. cos 8θ+8cos 6θ+28cos 4θ+56cos 2θ+35
B. cos 8θ+8cos 6θ-28cos 4θ+56cos 2θ+35
C. cos 8θ-8cos 6θ+28cos 4θ-56cos 2θ+35
D. cos 8θ+8cos 6θ-28cos 4θ-56cos 2θ+35
27 cos5 θsin3 θ=
A. 6sin 2θ+2 sin 4θ-2 sin6θ-sin 8θ
B. 6sin 2θ-2 sin 4θ-2 sin6θ-sin 8θ
C. 6sin 2θ+2 sin 4θ+2 sin6θ+sin 8θ
D. 6sin 2θ-2 sin 4θ-2 sin6θ+sin 8θ
The last terms in the expantions of sin 8θ, sin 9θ respectively are
A. 8cos θ.sin7 θ,-sin9 θ
B. 8cos θ.sin7 θ,sin9 θ
C. -8cos θ.sin7 θ,-sin9 θ
D. -8cos θ.sin7 θ,sin9 θ
64cos3 θsin4 θ=
A. cos 7θ+cos 5θ-3cos 3θ+3 cos θ
B. cos 7θ-cos 5θ-3cos 3θ+3 cos θ
C. cos 7θ-cos 5θ-3cos 3θ-3 cos θ
D. cos 7θ+cos 5θ-3cos 3θ-3 cos θ