यदि \(x_1=4\) और \(x_n=2x_{n-1}+n^2-n\) है, तो \(x_4\) का मान क्या होगा?
If \(x_1=4\) and \(x_n=2x_{n-1}+n^2-n\), what is the value of \(x_4\)?
Explanation opens after your attempt
A. चौंसठ(64)
Concept
\(x_2=10\), \(x_3=26\), and \(x_4=64\). In exams, simplify \(n^2-n\) before adding it.
Why this answer is correct
The correct answer is A. चौंसठ / (64). \(x_2=10\), \(x_3=26\), and \(x_4=64\). In exams, simplify \(n^2-n\) before adding it.
Exam Tip
\(x_2=10\), \(x_3=26\) और \(x_4=64\) है। परीक्षा में \(n^2-n\) को सरल करके जोड़ें।
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