If the domain of function f(a)=a^2-4 a+8 is (- , ),, then the ran… - Vidyadip

MCQ

If the domain of function $f(a)=a^2-4 a+8$ is $(-\infty, \infty)$,, then the range of function is ______

A
(2, ∞)
B
(-∞, -2)
C
(4, ∞)
✓
(4, ∞)

✓

Answer

Correct option: D.

(4, ∞)

D

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