Question: For 7a-c, use u1= 4. Round your answers to the nearest thousandth. a. For a geometric series with r = 0.7, find S10 and S40.

For 7a-c, use u1= 4. Round your answers to the nearest thousandth.
a. For a geometric series with r = 0.7, find S10 and S40.
b. For r = 1.3, find S10 and S40.
c. For r = 1, find S10 and S40.
d. Graph the partial sums of the series in 7a-c.
e. For which value of r (0.7, 1.3, or 1) do you have a convergent series?

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