Practice problem
The Fibonacci sequence is defined by F1=1F_1 = 1F1=1, F2=1F_2 = 1F2=1, and Fn+2=Fn+1+FnF_{n+2} = F_{n+1} + F_nFn+2=Fn+1+Fn. What is F10F_{10}F10?
55
60
65
70
Type a concept, like “slope” or “photosynthesis”.