Question

The nth term of a sequence is
3n - 1.
What are the first two terms?

Answer 1

Explanation:

Given :

`t_n = 3n - 1 \\ \\ \therefore \: t_1 = 3 * 1 - 1 \\\therefore \: t_1 = 3 - 1 \\ \red{ \boxed{ \therefore \: t_1= 2}} \\ \\ t_2 = 3 * 2 - 1 \\\therefore \: t_2 = 6 - 1 \\ \orange{ \boxed{ \therefore \: t_2= 5}}`

Hence, first two terms of given sequence are 2 & 5.

Answer 2

first term = 2

second term = 5

Explanation:

n = 1 ; 3n - 1 = 3*1 - 1 = 3 - 1 = 2

n=2; 3n -1 = 3*2 - 1 = 6- 1 = 5