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[" If the chord "y=mx+1" of the circle "...

[" If the chord "y=mx+1" of the circle "x^(2)+y^(2)=1" subtends an "],[" angle of measure "45^(@)" at the major segment of the circle then "],[" value of "m" is "],[[" (a) "2+-sqrt(2)," (b) "-2+-sqrt(2)],[" (c) "-1+-sqrt(2)," (d) none of these "]]

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