2sin[(C+D)/2].cos[(CÂ-D)/2] is equal to – McqOptions

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1.	2sin[(C+D)/2].cos[(CÂ-D)/2] is equal to
A.	sinC Â-Â sinD
B.	cosC + cosD
C.	cosC -Â cosD
D.	sinC + sinD
Answer» E.

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