यदि \(30, 24, 18,\ldots\) से \(2, 7, 12,\ldots\) को पद-दर-पद घटाया जाए, तो नए अनुक्रम का सार्व अंतर क्या होगा?
If \(2, 7, 12,\ldots\) is subtracted term by term from \(30, 24, 18,\ldots\), what will be the common difference of the new sequence?
Explanation opens after your attempt
A. (-11)
Concept
The first sequence has (d=-6) and the second has (d=5), so the difference sequence has (d=-6-5=-11). In termwise subtraction, the common differences also subtract.
Why this answer is correct
The correct answer is A. (-11). The first sequence has (d=-6) and the second has (d=5), so the difference sequence has (d=-6-5=-11). In termwise subtraction, the common differences also subtract.
Exam Tip
पहले अनुक्रम का (d=-6) और दूसरे का (d=5) है, इसलिए अंतर अनुक्रम का (d=-6-5=-11)। पद-दर-पद घटाव में (d) भी घटते हैं।
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