Subject :IMO Class : Class 10
If sinθ + sin2θ + sin3θ = 1, then the value of cos6θ - 4cos4θ + 8cos2θ is ______.
A6
B8
C4
D3
If sinθ + sin2θ + sin3θ = 1, then the value of cos6θ - 4cos4θ + 8cos2θ is ______.
A6
B8
C4
D3