Is the sequence (a_n=n^2-3n+2) an AP?

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Answer and explanation

Correct answer: No, (a_{n+1}-a_n=2n-2) is not constant

Here the difference depends on (n), so it is not constant. In exams, a quadratic (a_n) usually does not form an AP.

What is the correct answer to this question?

No, (a_{n+1}-a_n=2n-2) is not constant

Why is this the correct answer?

Here the difference depends on (n), so it is not constant. In exams, a quadratic (a_n) usually does not form 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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