Skip to content

Library Solve Practice

Search 7,000+ topics/

Color theme

Library Solve Practice

Search everything About Expii Contributors

Library
Hidden
Algebra Revisited
Reference: Computations and Algebraic Manipulations
Common Identities/Formulas and Algebraic Maneuvers
Common Sequences (Lists) and Series
Linear Recurrences and Common Examples
Fibonacci Sequence as Linear Recurrence

Practice problem

Fibonacci Sequence as Linear Recurrence

By BBenjamin Qi

+1 contributors

Contributors

Benjamin Qi
Alex Federspiel

Find $n$ so that $F_n= F_1 + F_3 + F_5 + ... + F_{21}.$

Choose one answer

Option A: A

22

Option B: B

23

Option C: C

24

Option D: D

25

Report a problem

What needs fixing?

Read explanations

For a more Thought Full world.

Learn

Library
Search
Solve
Practice

Expii

About Expii
Contributors
Blog archive
Contact
Conduct

Family

LIVE
Po-Shen Loh

Free explanations from a community of curious people.© 2026 Expii, Inc.Terms Privacy

Find a topic

Type a concept, like “slope” or “photosynthesis”.

↑ ↓ to choose · Enter to openSearch explanations and problems