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
Asked by Ankita Patel | 26th Sep, 2011, 03:18: PM
Expert Answer:
Kindly post only one query at a time.


Answered by | 14th Oct, 2011, 05:41: PM
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