समांतर श्रेणी \(5,9,13,17,\ldots\) का सामान्य पद कौन-सा है?
Which is the general term of the arithmetic progression \(5,9,13,17,\ldots\)?
Explanation opens after your attempt
B. \(a_n=4n+1\)
Concept
The first term is (5) and the difference is (4), so \(a_n=4n+1\). In exams, use (a_n=a+(n-1)d).
Why this answer is correct
The correct answer is B. \(a_n=4n+1\). The first term is (5) and the difference is (4), so \(a_n=4n+1\). In exams, use (a_n=a+(n-1)d).
Exam Tip
पहला पद (5) और अंतर (4) है, इसलिए \(a_n=4n+1\) है। परीक्षा में (a_n=a+(n-1)d) लगाएँ।
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