Question

The nth term of a sequence is n^2+20 A) work out the first three terms of the sequence B) how many terms in the sequence are less than 50

Answer 1

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➷ a) (1)^2 + 20 = 21

(2)^2 + 20 = 24

(3)^2 + 20 = 29

b) (5)^2 + 20 = 45

(6)^2 + 20 = 56

There are 5 terms less than 50

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