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If a,b,c be the sides of triange with P ...

If a,b,c be the sides of triange with P as the perimeter and area as `/_\,` then (A) `27(b+c-a)(c+a-b)(a+b-c)geP^3` (B) `a^2+b^2+c^2ge4sqrt(3) A` `(C) a^2+b^2+c^2geP^2/3` (D) all of the above

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