Posted by **mathematics help** on Wednesday, February 15, 2012 at 11:53am.

if a,b,c,d are distinct integers in AP, such that d=a^2 + b^2 + c^2, then find a+b+c+d.

options are as follows:-

(a) 0 (b) 1 (c)2 (d) none of these

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