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8. Give the first 3 terms of the following geometric sequence and the n" term, a. a. a=4 andr 2 d. a = 5 andr=D0 %3D

8. Give the first 3 terms of the following geometric sequence and the n" term, a. a. a=4 andr 2 d. a = 5 andr=D0 %3D

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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8a: a=4 and r=2
4. It a= 36 and ris greater than 1, will the terms in the sequence get bigger or smaller? Explain. 5. If a = 36 and r is positive and less than 1. will the terms in the sequence get bigger or smaller? Explain. 6. If a = 36 and r is equal to 1, will the terms in the sequence get bigger or smaller? Explain. Exercises: 7. Interpret the given information and then find the missing piece. a. a, = 9 and r = 4. Find a,. f. a, = 100 and r = 100. Find a,. b. a, = 15 and r = 3. Find a,. g. a, = 100 and r=2. Find a.. c. a, = 6 and r = 3. Find az. h. I a, = 64 and r = 4. Find as. d. a, = 40 and r = 2. Find a7. i. I ass = 1024 and r 8. Find a 53 - e. I a, = 20 and r 17. Find a,. j. 圖 a =1024 and r= 2. Find a59. 8. Give the first 3 terms of the following geometric sequence and the nh term, a,. a. a=4 andr3 2 d. a 5 andr 0 b. a=4 andr= 1 e. a=21 andr 2 c. a=3 andr= 3 f. a = 73 and r= 2
Transcribed Image Text:4. It a= 36 and ris greater than 1, will the terms in the sequence get bigger or smaller? Explain. 5. If a = 36 and r is positive and less than 1. will the terms in the sequence get bigger or smaller? Explain. 6. If a = 36 and r is equal to 1, will the terms in the sequence get bigger or smaller? Explain. Exercises: 7. Interpret the given information and then find the missing piece. a. a, = 9 and r = 4. Find a,. f. a, = 100 and r = 100. Find a,. b. a, = 15 and r = 3. Find a,. g. a, = 100 and r=2. Find a.. c. a, = 6 and r = 3. Find az. h. I a, = 64 and r = 4. Find as. d. a, = 40 and r = 2. Find a7. i. I ass = 1024 and r 8. Find a 53 - e. I a, = 20 and r 17. Find a,. j. 圖 a =1024 and r= 2. Find a59. 8. Give the first 3 terms of the following geometric sequence and the nh term, a,. a. a=4 andr3 2 d. a 5 andr 0 b. a=4 andr= 1 e. a=21 andr 2 c. a=3 andr= 3 f. a = 73 and r= 2
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