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For the fractional part function \(f(x)=\{x\}\), what is the value of the function at \(x=2.6\)?

Answer and explanation

Correct answer: 0.6

The fractional part of a number \(x\) is defined as \(x-\lfloor x\rfloor\). Therefore, \(f(2.6)=\{2.6\}=2.6-\lfloor2.6\rfloor=2.6-2=0.6\). Hence, option A is correct. Exam tip: subtract the greatest integer less than or equal to the given number from the number itself.

Related tags

Relations And FunctionsStandard FunctionsFractional Part FunctionGraphs Of Standard FunctionsMathematicsClass 11 Mcq

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