Maths-
General
Easy

Question

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

hintHint:

  • 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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