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[" 7.If "p,q,r" are in A.P.,while "x,y,z...

[" 7.If "p,q,r" are in A.P.,while "x,y,z" are in G.P.,then "],[x^(q-r)*y^(r-p).z^(p-q)" is : "],[[" (A) "0," (B) "1],[" (C) "2," (D) None of these."]]

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