Question

Find the 5th term and the nth term of the arithmetic sequence given by a_n = 2n - 1.

a) 9, 2n - 1
b) 9, 2n + 1
c) 8, 2n - 1
d) 8, 2n + 1

Answer 1

The 5th term of the arithmetic sequence is 9 and the nth term is 2n - 1.

Step-by-step explanation:

To find the 5th term of the arithmetic sequence, we can substitute n = 5 into the formula a_n = 2n - 1. So, a_5 = 2(5) - 1 = 9. Therefore, the 5th term is 9.

To find the nth term of the arithmetic sequence, we can substitute n into the formula a_n = 2n - 1.

So, the nth term is 2n - 1.