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For the function \(f(x)=x^3\), what is the relation between \(f(-1)\) and \(f(1)\)?

Answer and explanation

Correct answer: \(f(-1)=-f(1)\)

\(f(-1)=(-1)^3=-1\) and \(f(1)=1^3=1\). Therefore, \(f(-1)=-f(1)\). Option A is incorrect because the two values are not equal, and option C is incorrect because \(-1<1\). Exam tip: a function satisfying \(f(-x)=-f(x)\) is odd, and \(x^3\) is an odd function.

Related tags

Relations-FunctionsStandard-FunctionsOdd-FunctionGraphs Of Standard FunctionsRelations And FunctionsMathematicsClass 11 Mcq

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