Consider f : R + → [4, ∞ ) given by f ( x ) = x 2 + 4. Show – InterviewSolution

1.	Consider f : R + → [4, ∞ ) given by f ( x ) = x 2 + 4. Show that f is invertible with the inverse f −1 of given f by , where R + is the set of all non-negative real numbers.
Answer» Consider f : R + → [4, ∞ ) given by f ( x ) = x 2 + 4. Show that f is invertible with the inverse f −1 of given f by , where R + is the set of all non-negative real numbers.

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