Question
If $a, b, c_{3} d$ are distinct integers in A.P. such that $d=a^{2}$ $+b^{2}+c^{2}$, then $a+b+c+d=$(A) 2(B) 1(C) 0(D) None of these
Step 1
P. be $t$. So, we can write $b=a+t$, $c=a+2t$, and $d=a+3t$. Show more…
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