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28 X and Y

A sequence is an ordered set of numbers.
Find the number that goes in the for the following sequence.

1, 1, 2, 3, 5, 8, 13, 21, ,

The Fibonacci sequence is a sequence of numbers in which each
number equals the sum of the 2 previous numbers. It means the
3rd term is the sum of the 1st and 2nd terms, and the 4th term is the
sum of the 2nd and 3rd terms.
The Fibonacci sequence was introduced by L. Fibonacci in 1202 in
his book Liber Abaci. The reason that this simple sequence became
important was that the sequence seemed to show the law of nature
in a mathematical way.

Chat
Discuss examples of the Fibonacci sequence that can be found in daily
life.

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