Let f:(−∞,+1]→R, g:[−1,∞)→R be such that f(x)=√1−x and – InterviewSolution

1.	Let f:(−∞,+1]→R, g:[−1,∞)→R be such that f(x)=√1−x and g(x)=√1+x, then f(x)+1g(x) exist if x∈
Answer» Let $f : (- \infty, + 1] \to R, g : [- 1, \infty) \to R$ be such that $f (x) = \sqrt{1 - x}$ and $g (x) = \sqrt{1 + x}$ , then $f (x) + \frac{1}{g (x)}$ exist if $x \in$

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