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Consider a `DeltaABC` and let a, b and c denote the lengths of the sides opposite to vertices A, B and C, repectively. `if a=1,b=3 and C=60^(@),` then `sin ^(2)` B is equal to

A

`27/28`

B

`3/28`

C

`81/28`

D

`1/3`

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The correct Answer is:
B
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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (Questions Asked In Previous 13 Years Exam)
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