Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

{[g(1)=51],[g(n)=g(n-1)+2]:}
Find an explicit formula for 
g(n).

g(n)=

{g(1)=51g(n)=g(n1)+2 \left\{\begin{array}{l} g(1)=51 \\ g(n)=g(n-1)+2 \end{array}\right. \newlineFind an explicit formula for g(n) g(n) .\newlineg(n)= g(n)=

Full solution

Q. {g(1)=51g(n)=g(n1)+2 \left\{\begin{array}{l} g(1)=51 \\ g(n)=g(n-1)+2 \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 22 more than the previous term. This indicates that it is an arithmetic sequence.
  2. Determine first term and common difference: Determine the first term and the common difference. The first term g(1)g(1) is given as 5151, and the common difference dd is the amount added to each term to get the next term, which is 22.
  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. Substitute the values of g(1)g(1) and dd into the formula. Here, g(1)=51g(1) = 51 and d=2d = 2.
  4. Write explicit formula: Write the explicit formula by substituting the values from Step 33 into the formula. The explicit formula is g(n)=51+(n1)×2g(n) = 51 + (n-1)\times2.
  5. Simplify the formula: Simplify the formula. g(n)=51+2n2g(n) = 51 + 2n - 2, which simplifies to g(n)=2n+49g(n) = 2n + 49.

More problems from Write a formula for an arithmetic sequence