अनुक्रम \(2,\frac{7}{2},5,\frac{13}{2},\ldots\) का सामान्य पद क्या है?
What is the general term of the sequence \(2,\frac{7}{2},5,\frac{13}{2},\ldots\)?
Explanation opens after your attempt
Correct Answer
B. \(a_n=\frac{3n+1}{2}\)
Concept
\(\frac{3n+1}{2}\) gives \(2,\frac{7}{2},5,\frac{13}{2}\). In exams, match fractional terms using small (n) values.
Why this answer is correct
The correct answer is B. \(a_n=\frac{3n+1}{2}\). \(\frac{3n+1}{2}\) gives \(2,\frac{7}{2},5,\frac{13}{2}\). In exams, match fractional terms using small (n) values.
Exam Tip
\(\frac{3n+1}{2}\) से \(2,\frac{7}{2},5,\frac{13}{2}\) मिलते हैं। परीक्षा में भिन्न पदों को छोटे (n) मानों से मिलाएँ।
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