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If (f:\mathbb{R}\to\mathbb{R}) is defined by (f(x)=x^4), which statement is correct?

Answer and explanation

Correct answer: Neither one-one nor onto

Step 1: (f(1)=f(-1)), so it is not one-one. Step 2: Negative real numbers are not obtained as (x^4), so it is not onto. Step 3: For even powers, check both symmetry and range.

Related tags

Power FunctionOne-OneOntoFunctionsRelations And FunctionsMathematicsClass 12 Mcq

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