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In a DeltaABC, (a + b + c) (b + c - a) ...

In a `DeltaABC, (a + b + c) (b + c - a) = lambda bc`. (where symbols have their usual meaning)& `lambda in I`, then greatest value of `lambda` is

A

`lambda lt 0`

B

`lambda gt 4`

C

`lambda gt 0`

D

`0 lt lambda lt 4`

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The correct Answer is:
D
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