अनुक्रम \(\frac{2}{3},\frac{3}{5},\frac{4}{7},\frac{5}{9},\ldots\) का सामान्य पद कौन-सा है?
What is the general term of the sequence \(\frac{2}{3},\frac{3}{5},\frac{4}{7},\frac{5}{9},\ldots\)?
Explanation opens after your attempt
A. \(a_n=\frac{n+1}{2n+1}\)
Concept
The numerator is (n+1) and the denominator is (2n+1), so \(a_n=\frac{n+1}{2n+1}\). In fractions observe numerator and denominator patterns separately.
Why this answer is correct
The correct answer is A. \(a_n=\frac{n+1}{2n+1}\). The numerator is (n+1) and the denominator is (2n+1), so \(a_n=\frac{n+1}{2n+1}\). In fractions observe numerator and denominator patterns separately.
Exam Tip
अंश (n+1) और हर (2n+1) है इसलिए \(a_n=\frac{n+1}{2n+1}\)। भिन्न में अंश और हर के पैटर्न अलग देखें।
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