College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.CR: Chapter Review
Problem 31E: Find the required term of each geometric sequence. 81,27,9,; 11th term
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![9.
a) The formula for the nth term of the sequence
n(n+1)(2n+1)
1, 5, 14, 30, 55, 91,... is
Find the 20th term.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb83ccd3a-d161-43e6-8f96-e32e0a75e38e%2F51d797d4-883b-4914-8e0b-92d73cfec9e5%2Fhuvqiiyh_processed.png&w=3840&q=75)
Transcribed Image Text:9.
a) The formula for the nth term of the sequence
n(n+1)(2n+1)
1, 5, 14, 30, 55, 91,... is
Find the 20th term.
![b) The nth term of the sequence 10, 17, 26, 37, 50, ... is (n+ 2)² +1.
Write down the formula for the nth term of the sequence 17, 26, 37, 50, 65,...](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb83ccd3a-d161-43e6-8f96-e32e0a75e38e%2F51d797d4-883b-4914-8e0b-92d73cfec9e5%2F190dws5_processed.png&w=3840&q=75)
Transcribed Image Text:b) The nth term of the sequence 10, 17, 26, 37, 50, ... is (n+ 2)² +1.
Write down the formula for the nth term of the sequence 17, 26, 37, 50, 65,...
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