the first and the last of an Ap are 6.7 and 17.1 respectively if there are fourteen term in the sequence find it's common difference?

Emmyrosh

4 years ago

Use the formula:

L = F + (n-1)d

where L is the last term, F is the first term, n is the number of terms, and d is the common difference.

17.1 = 6.7 + (14–1)d

17.1–6.7 = 13d

13d = 10.4

d = 10.4 ÷ 13 = 0.8

The common difference is 0.8.