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The positive integer 4 can be represented as a sum of 1's or 2's in five ways, such as 1 + 2 + 1 and 1 + 1 + 2. Show all the wa...

Asked by PRIDE

The positive integer 4 can be represented as a sum of 1's or 2's in
five ways, such as 1 + 2 + 1 and 1 + 1 + 2. Show all the ways that
the positive integer 5 can be represented as a sum of 1's or 2's.
17 years ago

Answers

Answered by drwls
1 + 2 + 2
2 + 1 + 2
2 + 2 + 1
1 + 1 + 3
1 + 3 + 1
3 + 1 + 1
17 years ago

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