Question

Asked Dec 21, 2019

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Suppose that {a1, a2, a3, …} is an arithmetic sequence with common difference d. Explain why {a1, a3 ,a5, …} is also an arithmetic sequence.

Step 1

It is given that the given sequence is arithmetic sequence with common difference d.

The given sequence is:

Step 2

So, the nth term can be written as:

Step 3

Now, it is required to prove that the below sequence is also arithmetic th...

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