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If $f:[2, \infty) \to B$ defined by $f(x)=x^2-4x+5$ is a bijection, then B=

\[\begin {array} {1 1} (a)\;[0, \infty) & \quad (b)\;[1, \infty) \\ (c)\;[4, \infty) & \quad (d)\;[5, \infty) \end {array}\]
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1 Answer

(b) $[1, \infty)$
answered Nov 7, 2013 by pady_1
 

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