यदि \(12, 9, 6, 3,\ldots\) के प्रत्येक पद में (2n) जोड़ा जाए, जहां (n) पद संख्या है, तो नया सार्व अंतर क्या होगा?
If (2n) is added to each term of \(12, 9, 6, 3,\ldots\), where (n) is the term number, what will be the new common difference?
Explanation opens after your attempt
C. (-1)
Concept
The original (d=-3), and the difference of (2n) is (2), so the new (d=-3+2=-1). For term-number changes, add or subtract its difference.
Why this answer is correct
The correct answer is C. (-1). The original (d=-3), and the difference of (2n) is (2), so the new (d=-3+2=-1). For term-number changes, add or subtract its difference.
Exam Tip
मूल (d=-3) है और (2n) का अंतर (2) है, इसलिए नया (d=-3+2=-1)। पद संख्या वाले परिवर्तन में उसके अंतर को जोड़ें या घटाएं।
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