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[" then "a,b," care in "],[[" (C) If the...

[" then "a,b," care in "],[[" (C) If the lines,ax "2y+1=0;bx+3y+1=0&," cx "+4y+1=0," (R) "A.P.],[" passess throubt the same point then "a,b,c" are in "]]

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