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

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If (f(x)=x+\frac{1}{x}) and (x<0), what is the range of (f)?

Answer and explanation

Correct answer: ( (-\infty,-2] )

For negative (x), the values are (-2) or less, with equality at (x=-1). The sign of the domain changes the range.

Related tags

Relations-Functions Domain-Range Hard Level-32 Real Valued Functions Their Domain And Range Real Valued Functions Their Domain And Range Relations And Functions Mathematics

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