Mathematics · Trigonometry
cos(A + B) और cos(A - B) का गुणनफल किसके बराबर होता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1sin2 A - cos2 B
- 2cos2 A - cos2 B
- 3cos2 A - sin2 B✓
- 4sin2 A - sin2 B
सही उत्तर देखें
cos2 A - sin2 B
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