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The Domain of the function f(x)=1/square root (|x| -x), is

Answers (1)

D Deependra Verma

Solution: We have ,

$f(x)=frac1sqrtleft | x ight |-x,$

$\ Rightarrow$ $f(x)$ is well defined if $left | x ight |-x> 0$

$Rightarrow$ $left | x ight |> xRightarrow x$ is negative.

$herefore$ $D(f)=(-infty ,0).$

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