2. a. The first term of an arithmetic series is 7 and its nth term is 127. The sum of the first n terms of the arithmetic series is 2077. Calculate the value of n and the thirteenth term of the series. b. The second term and the fifth term of a geometric series are 5 and respectively. Find the difference between the seventh term and the eighth term.
2. a. The first term of an arithmetic series is 7 and its nth term is 127. The sum of the first n terms of the arithmetic series is 2077. Calculate the value of n and the thirteenth term of the series. b. The second term and the fifth term of a geometric series are 5 and respectively. Find the difference between the seventh term and the eighth term.
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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Question
![2.
a. The first term of an arithmetic series is 7 and its nth term is 127. The sum of
the first n terms of the arithmetic series is 2077. Calculate the value of n and
the thirteenth term of the series.
b. The second term and the fifth term of a geometric series are 5 and -
respectively. Find the difference between the seventh term and the eighth
term.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff24736e6-6b92-40be-9a7f-310fb78cfa27%2F0fce73d3-a62f-4081-8773-7194fccd08b1%2F6b5pmxbo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2.
a. The first term of an arithmetic series is 7 and its nth term is 127. The sum of
the first n terms of the arithmetic series is 2077. Calculate the value of n and
the thirteenth term of the series.
b. The second term and the fifth term of a geometric series are 5 and -
respectively. Find the difference between the seventh term and the eighth
term.
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