If $a, b, c$ are different positive real numbers such that $b + c - a, c + a - b$ and $a + b - c$ are positive, then $(b + c - a) (c + a - b) (a + b - c) - ab c$ is

positive

negative

non-positive

non- negative

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a, b, c

are different positive real numbers such that

b + c - a, c + a - b

and

a + b - c

are positive, then

(b + c - a) (c + a - b) (a + b - c) - ab c

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Question Text

a, b, c

are different positive real numbers such that

b + c - a, c + a - b

and

a + b - c

are positive, then

(b + c - a) (c + a - b) (a + b - c) - ab c

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