Which recursive formula can be used to define this sequence for n > 1 ?1,12,23,34,45,56,…Choices:an=617an−1an=an−1+an−2+11an=an−1−11an=an−1+11
Q. Which recursive formula can be used to define this sequence for n>1?1,12,23,34,45,56,…Choices:an=617an−1an=an−1+an−2+11an=an−1−11an=an−1+11
Identify Pattern in Sequence: To find the recursive formula, we need to look at the pattern in the sequence. Let's examine the difference between consecutive terms.12−1=1123−12=1134−23=1145−34=1156−45=11We can see that each term is 11 more than the previous term.
Express nth Term: Based on the pattern, we can express the nth term (an) as the sum of the (n−1)th term (an−1) and 11. This gives us the recursive formula:an=an−1+11
Check Given Choices: Now let's check the given choices to see which one matches our formula:Choices: [a] an=617an−1 (This is not correct as it does not represent the pattern we found.)[b] an=an−1+an−2+11 (This is not correct as it involves two previous terms and does not represent the simple addition of 11 to the previous term.)[c] an=an−1−11 (This is not correct as it subtracts 11 instead of adding it.)[d] an=an−1+11 (This is correct as it matches the pattern we found.)