+817 The domain of the function $f(x) = \sqrt{25-x^2}+\sqrt{x-2} + \frac{1}{\sqrt{1 - x}}$ is an interval of what width?
+743 To find the domain of f(x)=25−x2+x−2+1−x1, we need to consider the following restrictions:
The first term, 25−x2, is defined only when 25−x2≥0. This means that −5≤x≤5.
The second term, x−2, is defined only when x−2≥0. This means that x≥2.
The third term, 1−x1, is defined only when 1−x>0. This means that x<1.
Therefore, the domain of f(x) is the intersection of the intervals [−5,5], [2,∞), and (−∞,1). The intersection of these intervals is the interval [2,5). This interval has a width of 5−2=3.
Note: We can also find the domain of f(x) by graphing it. The graph shows that f(x) is defined only for values of x in the interval [2,5].
