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IF tan A and tan B are the roots o...

IF ` tan A and tan B ` are the roots of ` abx^2 - c^2 +ab =0` where a,b,c are the sides of the triangle ABC then the value of ` sin ^2 + sin ^2 B + sin ^2 C `is

A

1

B

3

C

4

D

2

Text Solution

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The correct Answer is:
D
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