1.

If a + b + c = 2s, then the value of (s - a)2 + (s - b)2 + (s - c)2 + s2 will be-

A. s2 - a2 - b2 - c2
B. s2 + a2 + b2 + c2
C. a2 + b2 + c2
D. 4s2 - a2 - b2 - c2
Answer» D. 4s2 - a2 - b2 - c2


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