अनुक्रम \(1,2,5,12,\ldots\) का सामान्य पद क्या है?
What is the general term of the sequence \(1,2,5,12,\ldots\)?
Explanation opens after your attempt
A. \(a_n=2^n-n\)
Concept
\(2^n-n\) gives (1,2,5,12). In exams also check subtraction of the term number in power-based rules.
Why this answer is correct
The correct answer is A. \(a_n=2^n-n\). \(2^n-n\) gives (1,2,5,12). In exams also check subtraction of the term number in power-based rules.
Exam Tip
\(2^n-n\) से (1,2,5,12) मिलते हैं। परीक्षा में घात वाले नियम में पद संख्या घटाना भी जाँचें।
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