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In a Delta ABC, the value of (a cosA+b c...

In a `Delta ABC,` the value of `(a cosA+b cosB+c cosC)/(a+b+c)` is equal to

A

`sinA`

B

`Asin""(A)/(2)sin""(B)/(2)sin""(C )/(2)`

C

`sin""(C )/(2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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