Question

If 2n²- 5 represents a sequence, then the sequence is​

Answer 1

Answer:

it's a quadratic sequence

Step-by-step explanation:

T1 = 2×1² - 5 = -3T2 = 2×2² - 5 = 3T3 = 2×3² - 5 = 13...Tn = 2n² - 5.

Answer 2

Answer:

Put values in the place of n to derive the series.

by putting n=1, we get,

-3

by putting n=2, we get,

3 and so on.

hence the series is -3, 3, 13, 17...