posted by Anonymous .
I have a couple questions about the sums of geometric series.
One. So the formula for the sum is
But if my series starts at t(0), can I change the formula to
Two. If, in the series, there is a different pattern in the numerator than in the denominator, how can I solve it?
Such as: [x/2]+[(x^2)/4]+[(x^3)/8]...