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[" 3.If the line "3x-4y+lambda=0,(lambda...

[" 3.If the line "3x-4y+lambda=0,(lambda>0)" touches the circle "x^(2)+y^(2)-4x-8y-5=0" at "(a,0)" ,intil "],[[" (a) "-22," (b) "-20," (c) "20," (d) "22],[" (a) "]]

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