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[" 16.If a variable line,"3x+4y-lambda=0...

[" 16.If a variable line,"3x+4y-lambda=0" is such that two circles "x^(2)+y^(2)-2x-2x-2y+1=0" and "],[x^(2)+y^(2)-18x-2y+78=0" are on its opposite sides,then the set of all values of "lambda" is the interval:- "],[[" (1) "(sqrt(2),21]," (2) "(2,17)]]

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If a variable line 3x+4y-lamda=0 is such that the two circles x^(2)+y^(2)-2x-2y+1=0 " and" x^(2)+y^(2)-18x-2y+78=0 are on its opposite sides, then the set of all values of lamda is the interval

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