ಒಂದು ವೇಳೆ cosθ + cos2θ = 1 ಆಗಿದ್ದರೆ, sin2θ + sin4θ ಯಾವುದಕ್ಕೆ ಸಮಾನವಾಗಿರುತ್ತದೆ?

1
2
2
0
3
\(\frac{1}{2}\)
4
1

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