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Class 11 Mathematics Relations and Functions Real-Valued Functions, Their Domain and RangeMedium

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Which function is not defined for every real (x)?

Answer and explanation

Correct answer: (f(x)=\sqrt{x-2})

(\sqrt{x-2}) needs (x-2\ge 0), so all real (x) are not allowed. In exams check the domain restriction in square root options.

Related tags

Real-Valued-Functions Domain Conceptual Real Valued Functions Their Domain And Range Real Valued Functions Their Domain And Range Relations And Functions Mathematics Class 11 Mcq

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