
Concept explainers
To Find :The sum of the first n terms ,using mathematical induction

Answer to Problem 43E
The formula is
Explanation of Solution
Given: Use the mathematical induction to find the sum of the first n terms of the sequence .
The given ,
Begin by writing first few sums
It appears that The sum of n terms is
This can be verified by mathematical induction
The formula has already been verified for n=1
Assume that the formula is valid for n=k
Then
Hence The formula is verified and The formula is
Chapter 9 Solutions
Precalculus with Limits
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