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A,B,C are three angles of a triangle and...

A,B,C are three angles of a triangle and `"sin" (A+c/2)= n "sin" C/2`
`("sin"C/2)/("cos"(A-B)/2)=`

A

n

B

`-n`

C

`1/n`

D

`-1/n`

Text Solution

Verified by Experts

The correct Answer is:
C
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