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26. If a+b+c=1 ,a*2+b*2+c*2=9 ,a*3+b*3+c*3=1 , Then the value of 1/a+1/b+1/c is

Answer» 26. If a+b+c=1 ,a*2+b*2+c*2=9 ,a*3+b*3+c*3=1 , Then the value of 1/a+1/b+1/c is


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