Math Problem Statement

The 37th term of Fibonacci number using Binet’s Formula

Solution

To find the 37th term of the Fibonacci sequence using Binet's Formula, we'll use the following formula:

F(n)=φnψn5F(n) = \frac{ \varphi^n - \psi^n }{\sqrt{5}}

Where:

  • F(n)F(n) is the nnth Fibonacci number.
  • φ=1+52\varphi = \frac{1 + \sqrt{5}}{2} (the golden ratio)
  • ψ=152\psi = \frac{1 - \sqrt{5}}{2}

Let's calculate F(37)F(37) using this formula.

F(37)=φ37ψ375F(37) = \frac{ \varphi^{37} - \psi^{37} }{\sqrt{5}}

Now let's compute it step by step:

  1. Calculate φ37\varphi^{37}.
  2. Calculate ψ37\psi^{37}.
  3. Subtract ψ37\psi^{37} from φ37\varphi^{37}.
  4. Divide the result by 5\sqrt{5}.

I'll calculate it for you.The 37th term of the Fibonacci sequence, calculated using Binet’s Formula, is 24,157,817.

Would you like further details on this calculation or have any other questions? Here are five related questions you might find interesting:

  1. How is Binet's Formula derived?
  2. Can Binet's Formula be used for any nn in the Fibonacci sequence?
  3. What is the significance of the golden ratio (φ\varphi) in the Fibonacci sequence?
  4. How does the approximation accuracy of Binet's Formula change with increasing nn?
  5. How can we prove that Fibonacci numbers appear in nature?

Tip: The Fibonacci sequence can be found in many natural patterns, such as the arrangement of leaves on a stem or the pattern of a pinecone's scales.

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Math Problem Analysis

Mathematical Concepts

Fibonacci Sequence
Binet's Formula
Golden Ratio

Formulas

Binet's Formula: F(n) = (φ^n - ψ^n) / √5

Theorems

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Suitable Grade Level

Advanced High School