How would I do this in matlab? I have the commands "syms, limit, symsum, factorial, and double" at my disposal. Not all commands have to be used but they are the ones that are supposed to help us.

3. (4 points) For each of the following series, (I) Find lim an (II) Find a general formula for sn, the nth partial sum, and display the first 10 partial sums. (III) Find the sum of the series, if it exists (-1)n +7n (b) ??2 2n + 3 oo 3(-2)n +4" 3. (4 points) For each of the following series, (I) Find lim an (II) Find a general formula for sn, the nth partial sum, and display the first 10 partial sums. (III) Find the sum of the series, if it exists (-1)n +7n (b) ??2 2n + 3 oo 3(-2)n +4