3 years ago

The nth term of a sequence is 20 - n2

Mathematics

1 answer:

maks197457 [2]3 years ago

5 0

Answer:

Fifth term

Step-by-step explanation:

The third term is:

20 − (3)² = 11

If the term is negative:

20 − n² < 0

n² > 20

n > √20

n > 4.47

The first term to have a negative value is the fifth term.

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