- #1
cathy
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Homework Statement
So I solved this problem
∑ (-1)^n (x+5)^n by finding the sum of the series to be 1/(x+6), which was correct. I am stuck on the second part of the problem asking for interval notation.
It says: Determine, in interval notation, the values of x for which the series converges. Use "-I" for negative infinity, "I" for infinity.
2. The attempt at a solution
I know that -x+5 > 1, but how to I turn this into interval notation?
I'm stuck on every one of these problems on my math hw, unfortunately. Please advise if you can. Thanks in advance.
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