Question

The nth term of a sequence is 3n^2-1
a)Find the second term of the sequence

Answer 1

second term = 11

Explanation:

to find the second term , substitute n = 2 into the nth- term formula

given nth- term formula

3n² - 1 , substitute n = 2 for second term

= 3(2)² - 1 = 3(4) - 1 = 12 - 1 = 11

second term = 11