Hindi, asked by akuldeep924, 5 months ago

कोस कोस ए प्लस बी का फार्मूला

Answers

Answered by sharmauma29641

0

Answer:

nahi aatata hhhhhh.............

Answered by SohamAnwane

0

Answer:

COS (A + B) = COS A COS B - SIN A SIN B

COS A + COS B = 2 COS [(A+B)/2] COS [ (A-B)/2 ]

Explanation:

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