Math Problem Statement

14, 7, 7/2… find the 6th term

Solution

The sequence given is 14,7,72,14, 7, \frac{7}{2}, \ldots. To find the 6th term, let's first identify the pattern.

  1. The first term is 1414.
  2. The second term is 77 (which is 142\frac{14}{2}).
  3. The third term is 72\frac{7}{2} (which is 72=144\frac{7}{2} = \frac{14}{4}).

From these, we can see that each term can be expressed as:

  • a1=14a_1 = 14
  • a2=142a_2 = \frac{14}{2}
  • a3=144a_3 = \frac{14}{4}

This suggests that the nn-th term can be expressed as: an=142n1a_n = \frac{14}{2^{n-1}}

Now, let's calculate the 6th term: a6=14261=1425=1432=716a_6 = \frac{14}{2^{6-1}} = \frac{14}{2^5} = \frac{14}{32} = \frac{7}{16}

Therefore, the 6th term is 716\frac{7}{16}.

Would you like any further details or explanations? Here are some related questions you might consider:

  1. What is the formula for the nth term of this sequence?
  2. How would you determine if the sequence is arithmetic or geometric?
  3. Can you find the sum of the first six terms?
  4. What would be the next term in the sequence after the 6th?
  5. How do you derive the common ratio or difference in sequences?

Tip: When working with sequences, try to identify the relationship between terms, as this can often reveal a pattern or formula.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Sequences
Exponents
Fractions

Formulas

a_n = 14 / 2^(n-1)

Theorems

-

Suitable Grade Level

Grades 6-8