Mon September 26, 2011 By: Ankita Patel

If a.cos A + b.sin A=c and a.cos B + b.sin B=c, then find: i) cos A + cos B ii) sin A + sin B iii) cos A.cos B iv) sin A.sin B

Expert Reply
Fri October 14, 2011
Kindly post only one query at a time.
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