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Chapter 11: Q3. (page 580)

Write an arithmetic sequence with common difference -5.

Short Answer

Expert verified

An arithmetic sequence with common difference -5 is20, 15, 10, 5 …..

Step by step solution

01

Step 1. Given Information.

Given the common difference of an arithmetic sequence is -5.

02

Step 2. Calculation.

Let the first term be a1=20

The common difference is d=−5

So,

The second term of the arithmetic sequence is 20−5=15

The third term of the arithmetic sequence is 15−5=10

The fourth term of the arithmetic sequence is 10−5=5

03

Step 3. Conclusion.

Hence, the arithmetic sequence with common difference -5 is 20, 15, 10, 5, ….

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