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If, in Delta ABC, a = 13, b = 14, c = 15...

If, in `Delta ABC, a = 13, b = 14, c = 15,` then : `sin (A//2) = ....`

A

`1//sqrt(5)`

B

`2//sqrt(5)`

C

`3//sqrt(5)`

D

`4//sqrt(5)`

Text Solution

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The correct Answer is:
A
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