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-- Mathematics - Section B1
Relations and Functions
The range of $f(x)=\frac{1}{1+\sqrt{x}}$ is equal to
$(0, \frac{1}{2}]$
[0, 1]
(0, 1]
none of these
$0≤\sqrt{x}<∞⇒1≤1+\sqrt{x}<∞⇒0<\frac{1}{1+\sqrt{x}}≤1⇒0<f(x)≤1$