Problem
Write a recursive formula for \( a_{n} \), the \( n^{\text {th }} \) term of the sequence \( 19,21,23,25, \ldots \) \[ a_{1}= \] \[ a_{n}=a_{n-1} \] Submit Answer \( a_{n-1} \)
Solution
Step 1 ：a_{1}=19
Step 2 ：a_{n}=a_{n-1}+2
