Chapter9: Sequences, Probability And Counting Theory
Section9.3: Geometric Sequences
Problem 53SE: Find the 5thterm of the geometric sequence {b,4b,16b,...}.
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Question
Use an=a1+(n-1)d and gn=g1re-1
to find:
the 19th term of the geometric sequence -2, -6, -18, -54 . . .
Expert Solution
Step 1
Here the given series is a geometric progression. So to find any term in the series we use formula to find the n th term of the geometric progression.
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