Medium
April was asked to determine whether is even, odd, or neither.
Here is her work:
Step 1: Find expression for
Step 2: Check if or
Also is the same as
Step 3: Conclusion
is equivalent to , so is odd.
Is April’s work correct? If not, what is the first step where April made a mistake?
April’s work is incorrect. She made the first mistake in step 2
April’s work is incorrect. She made the first mistake in step 1
April’s work is incorrect. She made the first mistake in step 3
April’s work is correct.
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