Multiple Choice Questions on x2 yz y2 zx z2 xy 3 the what is the value of x y z 3 ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

x2 yz y2 zx z2 xy 3 the what is the value of x y z 3 ........

Quantitative Aptitude (RRB NTPC) Algebra
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    (x2/yz) + (y2/zx)+ (z2/xy) =3 the what is the value of (x+y+z)3

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    Explanation:

    (x2/yz) + (y2/zx)+ (z2/xy) =3
    or (x3+y3+ z3)=3xyz
    or (x+y+z)=0
    So (x+y+z)3=0

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