Suppose that [infinity] cn x n n = 0 converges when x = −4 and diverges when x = 6. What can be said about the convergence or divergence of the following series? (a) [infinity] cn n = 0 When compared to the original series, we see that x = here. Since the original series for that particular value of x, we know that this series . (b) [infinity] cn7n n = 0 When compared to the original series, we see that x = here. Since the original series for that particular value of x, we know that this series . (c) [infinity] cn(−2)n n = 0 When compared to the original series, we see that x = here. Since the original series for that particular value of x, we know that this series . (d) [infinity] (−1)ncn9n n = 0 When compared to the original series, we see that x = here. Since the original series for that particular value of x, we know that this series . Need Help? Read It