Asked by ER

A sequence is generated where is term is equal to the sum of to preceding terms. If the first 2 terms are 1 and 2, what is the fifth term?

Please explain the logic.
Answered by Ms. Sue
If I understand your garbled question, then the third term is 3. The fourth term is 6, and the fifth term is 12.
Answered by Steve
The sequence is

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

You already explained the logic. Each term is the sum of the two preceding terms.
Answered by Ms. Sue
Oops -- I misinterpreted "to." Steve is right.

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