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Is the sequence (a_n=2n+(-1)^n) an AP?
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Answer and explanation
Correct answer: No, the consecutive difference changes
The initial terms are (1,5,5,9,\ldots), so the difference is not constant. In exams, test terms containing ((-1)^n) by substituting a few values.
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What is the correct answer to this question?
No, the consecutive difference changes
Why is this the correct answer?
The initial terms are (1,5,5,9,\ldots), so the difference is not constant. In exams, test terms containing ((-1)^n) by substituting a few values.
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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