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In DeltaABC, if (a+b+c)(b+c-a)=3bc, then...

In `DeltaABC,` if `(a+b+c)(b+c-a)=3bc`, then A=

A

`A=60^(@)`

B

`B=60^(@)`

C

`C=60^(@)`

D

`A=90^(@)`

Text Solution

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The correct Answer is:
A
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