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If a,b,c are all different and the equations ax+a2y+a3+1z=0,bx+b2y+b3+1z=0 ,  cx+c2y+c3+1z=0 have a nonzero solution, then 

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a
abc+1=0
b
abc−1=0
c
a2+b2+c3=ab+bc+ca
d
a3+b3+c3+3abc=0

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detailed solution

Correct option is A

Given equation have non zero solution ⇒aa2a3+1bb2b3+1cc2c3+1=0⇒aa2abb2b3cc2c3+aa21bb21cc21=0⇒abc1aa21bb21cc2+1aa21bb21cc2=0⇒(abc+1)1aa21bb21cc2=0⇒abc=−1


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If the system of equations, ax+by+cz=0 , bx+cy+az=0  and cx+ay+bz=0  have non trivial solution, then


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