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In triangle ABC, if a=13,b=14 and c=15 ,...

In `triangle ABC`, if `a=13,b=14` and `c=15` , then `sin.(A)/(2)=` ...................

A

`(1)/(5)`

B

`sqrt((1)/(5))`

C

`(4)/(5)`

D

`(2)/(5)`

Text Solution

Verified by Experts

The correct Answer is:
B
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