Question

5th term of an arithmetic progression is 7 and 8 term is 21 find A and D and write arithmetic progression​

Answer 1

Answer:

write ℓ for the last term of a finite sequence, and so in this case we would have. ℓ = a + (n − 1)d. Key Point. An arithmetic progression, or AP, is a sequence where each new term after the first is obtained. by adding a constant d, called the common difference, to the preceding term.