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There can exist a triangle ABC satisfyin...

There can exist a triangle ABC satisfying the conditions :

A

`tan A+ tan B+ tanC=0`

B

`(sin A)/(2) =(sin B)/(3) =(sin C)/(7)`

C

`(a+b)^(2)=c^(2)+ab and sqrt2 (sin A+cos A) =sqrt3`

D

`sin A+ sin B= ((sqrt3+1)/(2)) cos A cos B =(sqrt3)/(4)=(sqrt3)/(4)=sin A sin B`

Text Solution

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The correct Answer is:
C, D
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