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kap26 [50]
3 years ago
8

The nth term of a sequence is 3n^2-1

Mathematics
1 answer:
Gwar [14]3 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

To find the second and fifth terms substitute n = 2 and n = 5 into the rule, that is

(a)

a_{2} = 3(2)² - 1 = (3 × 4) - 1 = 12 - 1 = 11

(b)

a_{5} = 3(5)² - 1 = (3 × 25) - 1 = 75 - 1 = 74

Thus the second term is 11 and the fifth term is 74

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Step-by-step explanation:

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