Question

Find the 104 term of the sequence -2,1,4,7,...

Answer 1

307.

Explanation:

Arithmetic sequence with first term a1 = -2 and common difference d = 1 - -2 = 3

an = a1 + d( n - 1), so

a104 = -2 + 3(104 - 1)

= -2 + 309

= 307.