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In the sequence (-1,1,3,5,\ldots), which term is (15)?
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Answer and explanation
Correct answer: (9)th term
Its rule is (a_n=2n-3), and (2n-3=15) gives (n=9). In exams, form the general term first to find the term number.
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What is the correct answer to this question?
(9)th term
Why is this the correct answer?
Its rule is (a_n=2n-3), and (2n-3=15) gives (n=9). In exams, form the general term first to find the term number.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: Explicit or general rule.
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