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What is the (n)th term of the sequence (31,26,21,16,11,\ldots)?
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Answer and explanation
Correct answer: (36-5n)
The first term is (31) and the difference is (-5), so (a_n=31+(n-1)(-5)=36-5n). Use a negative difference in a decreasing sequence.
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What is the correct answer to this question?
(36-5n)
Why is this the correct answer?
The first term is (31) and the difference is (-5), so (a_n=31+(n-1)(-5)=36-5n). Use a negative difference in a decreasing sequence.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: nth term.
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