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Bas_tet [7]
3 years ago
13

What is the sum of the first 12 terms in the fibonacci sequence?

Mathematics
1 answer:
Neporo4naja [7]3 years ago
8 0
Hello,

u_{1} =a\\
 u_{2} =b\\
 u_{3} =a+b\\
 u_{4} =a+2b\\
 u_{5} =2a+3b\\
 u_{6} =3a+5b\\
 u_{7} =5a+8b\\
 u_{8} =8a+13b\\
 u_{9} =13a+21b\\
 u_{10} =21a+34b\\
 u_{11} =34a+55b\\
 u_{12} =55a+89b\\

\boxed{\sum_{i=1}^{12}(u_i)=144a+232b\\}





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