1.

If f(x)=1√x2+4 and g(x)=√x are two real functions, then the domain of fog (x) is (a) [0,∞) (b) R (c) (−4,∞) (d) [−4,∞)

Answer» If f(x)=1x2+4 and g(x)=x are two real functions, then the domain of fog (x) is

(a) [0,) (b) R
(c) (4,) (d) [4,)


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