अनुक्रम \(1,15,63,195,\ldots\) का सामान्य पद कौन-सा है?
What is the general term of the sequence \(1,15,63,195,\ldots\)?
Explanation opens after your attempt
B. \(a_n=n^3+n-1\)
Concept
\(n^3+n-1\) does not give the sequence; none of the listed options correctly fits this sequence. Matching options with initial terms is necessary.
Why this answer is correct
The correct answer is B. \(a_n=n^3+n-1\). \(n^3+n-1\) does not give the sequence; none of the listed options correctly fits this sequence. Matching options with initial terms is necessary.
Exam Tip
\(n^3+n-1\) से (1,9,29,67) नहीं मिलता; इस क्रम के लिए दिए विकल्पों में सही नियम नहीं है। विकल्पों को शुरुआती पदों से मिलाना जरूरी है।
Login to save your score, XP, coins and progress.
