JEE MATHEMATICS MCQ: FUNCTIONS

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Understanding +4 | -1

f\left( x \right) = \frac{1}{{\sqrt {\left| x \right| - x} }}

then, domain of

f\left( x \right)

View answer and explanation

Correct option: A

\left( { - \infty ,\;0} \right)

Option A (

\left( { - \infty ,\;0} \right)

) is correct because the function is defined only when

|x| > x

, which occurs when x is negative.

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