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find the values of parameter a for which the roots of quadratic equation x^{2}+2(a-1)x+a+5=0 are

1.exactly 1 root lies in the interval(1,3)

2.both the roots lie in the interval(1,3)

3.one root is greater than 3 and other is smaller than 1

The given quadratic equation is

*x*

^{2}+ 2(

*a*–1)

*x*+ (

*a*+ 5) = 0

3.

one root is greater than 3 and other is smaller than 1

2. both the roots lie in the interval(1,3)

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