Question: q 1 4 Express the sum x - x 2 - x 3 + x 4 + x 5 - x 6 - x 7

q14
Express the sum
x-x2-x3+x4+x5-x6-x7+x8+dots
in terms of geometric series (hint: group x4n,x4n-1, etc.
n=0
Now express the sum as a rational function:
q 1 4 Express the sum x - x 2 - x 3 + x 4 + x 5 -

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