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If a sequence has (a_{n+1}-a_n=2n+1), when will it be an AP?
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Answer and explanation
Correct answer: Never
The difference depends on (n), so it is not constant for all (n). In exams, if (n) remains in the difference, it is not an AP.
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What is the correct answer to this question?
Never
Why is this the correct answer?
The difference depends on (n), so it is not constant for all (n). In exams, if (n) remains in the difference, it is not an AP.
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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