[" (1) If both the roots of the quadratic equation "x^(2)-2kx+k^(2)+k-5=0" are less than "5" ,then "k" lies in the "],[" ifforth the roots of the quadratic equation "x^(2)-2kx+k^(2)+k-5=0" are less than "5" ,the klies in the "],[" interval "],[[" (1) "(5,6]," (2) "(6," c) ")],[" Q.1"f" the roots of the quadratic equation "x^(2)+px+q=0" are "tan30^(@)" and "," tan "15^(@)" respectively,"]]