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In a triangle ABC, AD is the altitude fo...

In a triangle ABC, AD is the altitude form- abcA (Fig. 12.9). Given `b>0, 2C = 23^@ and AD =(abc)/(b^2-c^2)` then `/_B`. is equal to

A

`110^(@)`

B

`113^(@)`

C

`120^(@)`

D

`130^(@)`

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The correct Answer is:
B
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