कौन सा क्रम \(a_n=3^n+n\) से बने पहले चार पद दिखाता है?
Which sequence shows the first four terms of \(a_n=3^n+n\)?
Explanation opens after your attempt
A. (4,11,30,85)
Concept
\(3^1+1=4\), \(3^2+2=11\), \(3^3+3=30\), and \(3^4+4=85\). Add (n) after evaluating the power.
Why this answer is correct
The correct answer is A. (4,11,30,85). \(3^1+1=4\), \(3^2+2=11\), \(3^3+3=30\), and \(3^4+4=85\). Add (n) after evaluating the power.
Exam Tip
\(3^1+1=4\), \(3^2+2=11\), \(3^3+3=30\), \(3^4+4=85\)। घात के बाद (n) जोड़ें।
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