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Class 10MathematicsArithmetic Progressions (AP)Introduction to APs and common difference.ExpertLevel 62
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Is the sequence (a_n=(-1)^n n) an AP?

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Answer and explanation

Correct answer: No, the consecutive difference is not constant

The signs alternate and the difference does not remain the same. In exams, test alternating-sign sequences by differences only.

Related tags

ApAlternating SequenceNot Ap

Frequently asked questions

What is the correct answer to this question?

No, the consecutive difference is not constant

Why is this the correct answer?

The signs alternate and the difference does not remain the same. In exams, test alternating-sign sequences by differences only.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Introduction to APs and common difference..

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10 more MCQs
  1. 1What is the common difference in the sequence 3, 7, 11, 15, …?
  2. 2In an arithmetic progression, how is the common difference (d) found?
  3. 3What is the common difference in (10,8,6,4,\ldots)?
  4. 4Which sequence is an arithmetic progression?
  5. 5What is the common difference of (6,6,6,6,\ldots)?
  6. 6What is the first term of the arithmetic progression (12,17,22,27,\ldots)?
  7. 7In the sequence (4,9,14,\Box,24,\ldots), what is the value of (\Box)?
  8. 8Which sequence is not an arithmetic progression?
  9. 9If the first term of an arithmetic progression is (a=5) and the common difference is (d=3), what is the second term?
  10. 10What is the common difference in (-3,1,5,9,\ldots)?
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