Math Problem Statement

Find a formula for the general term an of the sequence assuming the pattern of the first few terms continues. The sequence is: {6/2, 6/4, 6/8, 6/16, 6/32, ...}. Assume the first term is a1. What is the value of an?

Solution

To determine the general term ana_n for the sequence provided, let’s analyze the given terms.

The sequence is:

{62,64,68,616,632,}\left\{ \frac{6}{2}, \frac{6}{4}, \frac{6}{8}, \frac{6}{16}, \frac{6}{32}, \dots \right\}

Step 1: Identify the Denominator Pattern

  • The denominators are 2,4,8,16,32,2, 4, 8, 16, 32, \dots.
  • This sequence represents powers of 22, specifically 21,22,23,24,25,2^1, 2^2, 2^3, 2^4, 2^5, \dots.

Thus, the denominator of the nn-th term is 2n2^n.

Step 2: General Term

The numerator in all terms is constant: 66.

Hence, the general term ana_n can be written as:

an=62na_n = \frac{6}{2^n}

Final Answer:

an=62na_n = \frac{6}{2^n}


Let me know if you'd like a detailed explanation or have any questions!

Related Questions:

  1. What is the general term of a sequence with powers of 33 in the denominator?
  2. How do you find the sum of a geometric sequence with a given ana_n?
  3. What happens to ana_n as nn \to \infty for an=62na_n = \frac{6}{2^n}?
  4. How can you derive a formula for an arithmetic sequence?
  5. How do you identify patterns in sequences with constant numerators?

Tip:

To find the general term in sequences, look for patterns in numerators and denominators separately (e.g., constant values, powers, or arithmetic progressions).

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Math Problem Analysis

Mathematical Concepts

Sequences
Geometric Progression
Exponents

Formulas

an = 6 / 2^n

Theorems

Properties of exponents

Suitable Grade Level

Grades 8-10