Question

The algebraic expression of an arithmetic sequence is 3n-2

a) What is the common difference?

b) Write the 10th term

Answer 1

Answer:

Tn = 3n -2

for n=1, T(1) = 3-2= 1

for n=2, T(2) = 6-2 = 4

(a) common difference = 4-1 = 3

(b) 10th term :- n = 10, Tn = 30-2 = 28