1.

The set of all real values of alpha for which the equation, |a+2||x-2|=alpha^(2)-2alpha has real solution for s, is :

Answer»

`(OO,0)uu[2,oo)`
`(-oo,0)uu[2,1+sqrt(5)]`
`[-1-sqrt(5),1-sqrt(5)]uu[1+sqrt(5),oo)`
`[1-sqrt(5),0)uu[2,1+sqrt(5)]`

ANSWER :A


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