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प्रश्न
Evaluate.
cos225° + cos265° - tan245°
उत्तर
cos225° + cos265° - tan245°
= cos2(90° - 65°) + cos265° - tan245°
= sin265° + cos265° - 1 = 1 - 1 = 0
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
Evaluate.
cos225° + cos265° - tan245°
cos225° + cos265° - tan245°
= cos2(90° - 65°) + cos265° - tan245°
= sin265° + cos265° - 1 = 1 - 1 = 0