नियम \(a_n=3n\) से बनने वाले पहले चार पद कौन से हैं?
What are the first four terms formed by \(a_n=3n\)?
Explanation opens after your attempt
B. (3,6,9,12)
Concept
Putting (n=1,2,3,4) gives (3,6,9,12). These are multiples of (3).
Why this answer is correct
The correct answer is B. (3,6,9,12). Putting (n=1,2,3,4) gives (3,6,9,12). These are multiples of (3).
Exam Tip
(n=1,2,3,4) रखने पर (3,6,9,12) मिलते हैं। ये (3) के गुणज हैं।
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