Question

Identify the 17th term in the arithmetic sequence.
a1 = 11, d = −2

Answer 1

The arithmetic sequence has a common difference, and a first term and the 17th term in the arithmetic sequence is -21

How to determine the 17th term?

The given parameters are:

• First term, a = 11
• Common difference, d = -2

The nth term of an arithmetic progression is:

Tn = a + (n - 1)d

So, we have:

T17 = a + 16d

Substitute the given values

T17 = 11 - 16 * 2

Evaluate

T17 = -21

Hence, the 17th term in the arithmetic sequence is -21

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