Barrett Smith
04/13/2023 · Middle School

Find the \( 14^{\text {th }} \) term of the following geometric sequence. \[ 1,3,9,27, \ldots \]

UpStudy ThothAI Solution

Tutor-Verified Answer

Step-by-step Solution

To find the \( 14^{\text{th}} \) term of the geometric sequence given by \( 1, 3, 9, 27, \ldots \), we first identify the first term and the common ratio of the sequence. The first term \( a \) is: \[ a = 1 \] Next, we find the common ratio \( r \) by dividing the second term by the first term: \[ r = \frac{3}{1} = 3 \] The general formula for the \( n^{\text{th}} \) term of a geometric sequence is given by: \[ a_n = a \cdot r^{n-1} \] To find the \( 14^{\text{th}} \) term, we set \( n = 14 \): \[ a_{14} = 1 \cdot 3^{14-1} = 1 \cdot 3^{13} \] Now, we need to calculate \( 3^{13} \). We can compute this step by step: \[ 3^1 = 3 \] \[ 3^2 = 3 \cdot 3 = 9 \] \[ 3^3 = 3 \cdot 9 = 27 \] \[ 3^4 = 3 \cdot 27 = 81 \] \[ 3^5 = 3 \cdot 81 = 243 \] \[ 3^6 = 3 \cdot 243 = 729 \] \[ 3^7 = 3 \cdot 729 = 2187 \] \[ 3^8 = 3 \cdot 2187 = 6561 \] \[ 3^9 = 3 \cdot 6561 = 19683 \] \[ 3^{10} = 3 \cdot 19683 = 59049 \] \[ 3^{11} = 3 \cdot 59049 = 177147 \] \[ 3^{12} = 3 \cdot 177147 = 531441 \] \[ 3^{13} = 3 \cdot 531441 = 1594323 \] Thus, the \( 14^{\text{th}} \) term of the sequence is: \[ \boxed{1594323} \]

Quick Answer

The \( 14^{\text{th}} \) term of the sequence is 1594323.
Answered by UpStudy AI and reviewed by a Professional Tutor
UpStudy ThothAI
Self-Developed and Ever-Improving
Thoth AI product is constantly being upgraded and optimized.
Covers All Major Subjects
Capable of handling homework in math, chemistry, biology, physics, and more.
Instant and Accurate
Provides immediate and precise solutions and guidance.
Try Now
Ask Tutors
Ask AI
10x
Fastest way to Get Answers & Solutions
By text

Enter your question here…

By image
Re-Upload
Uploaded Files
xxxx.png0%
Submit
📸 STUDY CAN BE A REAL STRUGGLE
Why Not UpStudy It?
Select your plan below
Premium

You can enjoy

  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to answer and
    solution
Basic
  • Limited Solutions