You forgot a minus sign.
I'm stuck on this one:
Use the Reciprocal Rule to verify that the Power Rule is valid for negative integers, that is,
for all positive integers n.
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Playing this out, I did this:
Next, I tried to restate the function like this:
and then I apply the Reciprocal Rule:
None of this is seems to be leading me anywhere helpful. Can anybody see where I might be going wrong or suggest another tack?
Thanks.