Question

⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ a(1)=−13 a(n)=a(n−1)+4 ​ Find the 2nd2^{\text{nd}} 2 nd 2, start superscript, start text, n, d, end text, end superscript term in the sequence

Answer 1

Answer:

  a(2) = -9

Step-by-step explanation:

It looks like you want the 2nd term in the arithmetic sequence defined by the recursive formula ...

• a(1) = -13
• a(n) = a(n -1) +4

Using the formula with n=2, we have ...

  a(2) = a(1) +4

  a(2) = -13 +4 . . . . substitute the value of a(1)

  a(2) = -9