Answer
$a_{1}=1$
$a_{2}=2$
$a_{3}=3$
$a_{4}=5$
$a_{5}=8$
Work Step by Step
We are given:
$a_{n}=a_{n-1}+a_{n-2}$ and $a_{1}=1$ and $a_{2}=2$
We evaluate:
$a_{3}=a_{2}+a_{1}=2+1=3$
$a_{4}=a_{3}+a_{2}=3+2=5$
$a_{5}=a_{4}+a_{3}=5+3=8$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.