Q. {g(1)=51g(n)=g(n−1)+2Find an explicit formula for g(n).g(n)=
Identify sequence type: Identify the type of sequence. The sequence is defined recursively with each term being 2 more than the previous term. This indicates that it is an arithmetic sequence.
Determine first term and common difference: Determine the first term and the common difference. The first term g(1) is given as 51, and the common difference d is the amount added to each term to get the next term, which is 2.
Use explicit formula for arithmetic sequence: Use the explicit formula for an arithmetic sequence, which is g(n)=g(1)+(n−1)d. Substitute the values of g(1) and d into the formula. Here, g(1)=51 and d=2.
Write explicit formula: Write the explicit formula by substituting the values from Step 3 into the formula. The explicit formula is g(n)=51+(n−1)×2.
Simplify the formula: Simplify the formula. g(n)=51+2n−2, which simplifies to g(n)=2n+49.
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