Maths-
General
Easy
Question
![left parenthesis negative straight infinity comma 0 right parenthesis](data:image/png;base64,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)
![left parenthesis negative straight infinity comma 1 right parenthesis](data:image/png;base64,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)
![left parenthesis negative straight infinity comma straight infinity right parenthesis](data:image/png;base64,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)
- None of the above
The correct answer is: ![left parenthesis negative straight infinity comma 0 right parenthesis](data:image/png;base64,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)
is defined
When ![vertical line x vertical line greater than x](data:image/png;base64,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)
![not stretchy rightwards double arrow space of 1em x less than negative x comma x greater than x](data:image/png;base64,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)
![not stretchy rightwards double arrow 2 x less than 0 comma left parenthesis x greater than x text is not possible end text right parenthesis](data:image/png;base64,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)
![not stretchy rightwards double arrow space of 1em x less than 0](data:image/png;base64,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)
Hence domain of ![f left parenthesis x right parenthesis text is end text left parenthesis negative straight infinity comma 0 right parenthesis](data:image/png;base64,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)
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