If $m$ and $n$ are odd integers, how many terms in the expansion of $(m+n)^6$ are odd?
Question:
If $m$ and $n$ are odd integers, how many terms in the expansion of $(m+n)^6$ are odd?
Answer:
Let's think step by step.

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If $m$ and $n$ are odd integers, how many terms in the expansion of $(m+n)^6$ are odd?
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