Mathematics · Trigonometry

व्यंजक cos 2θ cos 2φ + sin2(θ - φ) - sin2(θ + φ) किसके बराबर है?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1cos 2(θ - φ)
2sin 2(θ - φ)
3cos 2(θ + φ)✓
4sin 2(θ + φ)

सही उत्तर देखें

cos 2(θ + φ)

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व्यंजक cos 2θ cos 2φ + sin2(θ - φ) - sin2(θ + φ) किसके बराबर है?

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व्यंजक cos 2θ cos 2φ + sin2(θ - φ) - sin2(θ + φ) किसके बराबर है?

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