Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

{[g(1)=-19],[g(n)=g(n-1)+6]:}
Find an explicit formula for 
g(n).

g(n)=

{g(1)=19g(n)=g(n1)+6 \left\{\begin{array}{l} g(1)=-19 \\ g(n)=g(n-1)+6 \end{array}\right. \newlineFind an explicit formula for g(n) g(n) .\newlineg(n)= g(n)=

Full solution

Q. {g(1)=19g(n)=g(n1)+6 \left\{\begin{array}{l} g(1)=-19 \\ g(n)=g(n-1)+6 \end{array}\right. \newlineFind an explicit formula for g(n) g(n) .\newlineg(n)= g(n)=
  1. Identify sequence type: Identify the type of sequence. The sequence is defined recursively with each term being 66 more than the previous term, which indicates that it is an arithmetic sequence.
  2. Determine first term and common difference: Determine the first term and the common difference of the sequence. The first term g(1)g(1) is given as 19-19, and the common difference is the amount added to each term to get the next term, which is 66.
  3. Use explicit formula for arithmetic sequence: Use the explicit formula for an arithmetic sequence, which is g(n)=g(1)+(n1)dg(n) = g(1) + (n-1)d, where g(1)g(1) is the first term and dd is the common difference. Here, g(1)=19g(1) = -19 and d=6d = 6.
  4. Substitute values into formula: Substitute the values of g(1)g(1) and dd into the formula to find the explicit formula for g(n)g(n). The formula becomes g(n)=19+(n1)×6g(n) = -19 + (n-1)\times 6.
  5. Simplify the formula: Simplify the formula. Distribute the 66 into the parentheses: g(n)=19+6n6g(n) = -19 + 6n - 6.
  6. Combine like terms for final formula: Combine like terms to get the final explicit formula for the sequence. g(n)=6n25g(n) = 6n - 25.

More problems from Write a formula for an arithmetic sequence