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Given b=2,c=sqrt3and A= 30^@, then in-ra...

Given b=2,c=`sqrt3`and A= `30^@,` then in-radius of triangle ABC is

A

`(sqrt3-1)/2`

B

`(sqrt3+1)/2`

C

`(sqrt3-1)/4`

D

none of these

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The correct Answer is:
A
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