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[" At is given that the difference betwe...

[" At is given that the difference between the zeros of "4x^(2)-8kx+9" is "4" and "],[k>0." Then,"k=?],[[" (a) "(1)/(2)," (b) "(3)/(2)," (c) "(5)/(2)," (d) "(7)/(2)]]

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