3 years ago

What is the 20th term in the sequence 1/2, 2, 7/2, 5

Mathematics

1 answer:

Nitella [24]3 years ago

7 0

2-0.5=1.5
3.5-2=1.5
Therefore difference is 1.5=n
1.5n-1 is nth term
When n=20
=29

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