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2 years ago

12

Find the nth term of this quadratic sequence 4, 7, 12, 19, 28,...

1 answer:

Len [333]2 years ago

4 0

Tn=n²+3

from 4 to 7....the difference is 3, then from 7 to 12 the difference is 5 and from 12 to 19 the difference is 7

therefore we constantly add 2 to the difference

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