Question 13 ras < > Solve for x: 9n Σ 8χθη 33 n=1 2= Question 14 ( < > For an arithmetic sequence, a27 28. If the comm

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Question 13 ras < > Solve for x: 9n Σ 8χθη 33 n=1 2=

Question 14 ( < > For an arithmetic sequence, a27 28. If the common difference is 3, find: ai = the sum of the first 33 terms =

Question 20 > The following series are geometric series. Determine whether each series converges or not. For the series which converge, enter the sum of the series. For the series which diverges enter "DNE" (without quotes). ) (a) Σ = 7" (b) = 2" 2" (c) iM8 M8 M8 M: iM8 II 72n +1 70 (d) Ž 7" 8" n=5 (e) Σ 5" 5" +4 (f) 00 7" + 2" 8" n=1 Σ