Problem 137 of 7
Classify f(x)=x^4 as even, odd, both, or neither.
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apply symmetry tests accurately.
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Function must have a clear symmetry classification.
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Solution
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1. Test f(-x)=f(x) for even.
2. Test f(-x)=-f(x) for odd.
3. Apply both tests before choosing both or neither.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Classifying by visual guess without checking conditions.