Math, asked by Sarikasree, 3 months ago

Is it right to say cos (60° + 30°) =cos 60° cos30° - sin 60° sin 30° .

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Answered by Anonymous

6

see attachment!!! Hope it's USEFUL ❤️

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Answered by sai172982

0

Step-by-step explanation:

yes cos(a+b) =cosa.cosb-sina.sinb

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