यदि \(1, 4, 7,\ldots\) में हर पद को उसकी पद संख्या से गुणा किया जाए, तो क्या नया अनुक्रम अंकगणितीय श्रेणी होगा?
If each term of \(1, 4, 7,\ldots\) is multiplied by its term number, will the new sequence be an arithmetic progression?
Explanation opens after your attempt
C. नहीं, क्योंकि नए अंतर समान नहीं हैंNo, because new differences are not equal
Concept
The new terms are \(1,8,21,\ldots\), and the differences are \(7,13,\ldots\), which are not equal. Multiplying by term number does not keep (d) constant.
Why this answer is correct
The correct answer is C. नहीं, क्योंकि नए अंतर समान नहीं हैं / No, because new differences are not equal. The new terms are \(1,8,21,\ldots\), and the differences are \(7,13,\ldots\), which are not equal. Multiplying by term number does not keep (d) constant.
Exam Tip
नए पद \(1,8,21,\ldots\) हैं और अंतर \(7,13,\ldots\) हैं, जो समान नहीं हैं। पद संख्या से गुणा करना (d) को स्थिर नहीं रखता।
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