Question

an-an-1 in arithmetic progression​

Answer 1

Answer:

a1 is the first term and d is the common difference.

Step-by-step explanation:

Definition of an arithmetic sequence: A sequence is said to be arithmetic if each term, after the first, is obtained from the preceding term by adding a common value. ... “The nth term of an arithmetic sequence is an = a1 + (n – 1) d, where a1 is the first term and d is the common difference.”

i hope this helpful

pls mark me as brainlest