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Maths-

General

Easy

Question

Write a recursive formula for the given sequence. 81,85,89,93,97,....

hint Hint:

Recursive Formula is a formula that defines the each term of sequence using the previous/preceding terms.

The correct answer is: a_n=a_(n-1)+4.

Explanation:

We have given a sequence 81,85,89,93,97,...

We have to find the recursive formula.

Step 1 of 1:
We have given a sequence 81,85,89,93,97,...
The given sequence is an AP.
We know that the recursive formula for any AP is $a subscript n equals a subscript n minus 1 end subscript plus d$ , where d is common difference.
Here the common difference is 4
So, The recursive formula is
$a subscript n equals a subscript n minus 1 end subscript plus d$
$a subscript n equals a subscript n minus 1 end subscript plus 4$

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