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Chapter 12: Q. 268 (page 1218)

Find the seventeenth term of a sequence where the first term is -21and the common difference is two.

Short Answer

Expert verified

The seventeenth term of a sequence is11

Step by step solution

01

Step 1. Given information

The first term of the series is -21

The common difference is 2

We have to find the17th term of the series.

02

Step 2. Using formula to find the term.

The general term of the arithmetic series with the first term a1and common difference dis: an=a1+(n-1)d

We have,n=17a1=-21d=2

03

Step 3. Put the values to find the term

Put the obtained value in the formula:

an=a1+(n-1)da17=-21+(17-1)2a17=-21+(16)2a17=-21+32a17=11

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Most popular questions from this chapter

Write the first five terms of the sequence whose general term isan=(n-1)!(n+1)!

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