If 2s = a +b + c, then the value of s (...

If `2s = a +b + c,` then the value of `s (s -c ) + (s -a) (s-b)` is :

A

abc

B

`(a+b+c)/2`

C

ab

D

0

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2014 TIER-II PAPER(18)
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CHAMPION PUBLICATION-2014 TIER-II PAPER(19)-EXERCISE

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