## anonymous one year ago An=(((-1)^(n)(n))/((n^2-5n-3)) can someone help me solve to find what L is for the Ratio test? i have been trying to solve and think I'm only slight off

1. jtvatsim

Reformatting: $A_n = \frac{(-1)^n \cdot n}{n^2 - 5n - 3}$

2. phi

I am getting -1

3. phi

or after taking the abs value, | -1| = 1

4. anonymous

okay great i forgot the abs sign so i had -1

5. anonymous

thanks!!!

6. anonymous

could you also help me with (-1)^(n+1)(11^(n-1))/((n+7)^6(10^(n+2)) for L

7. phi

here is a good reason to use the equation editor. (button on the lower left) of the input box.

8. anonymous

where is it?

9. anonymous

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