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Find the 90th term of the arithmetic sequence 16, 21, 26,….

User DrColossos
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1 Answer

4 votes

Answer:

Given sequence is,

16, 21, 26,….

This is an arithmetic sequence.

The initial term of the sequence (a) is 16

Common difference (d) is 21-16=5

The general term of the sequence is,


t_n=a+(n-1)d

To find the 90 th term of the arithmetic sequence.


t_n=16+(90-1)5
=461

The 90th term of the arithmetic sequence 16, 21, 26,…. is 461.

User Hadus
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