यदि \(a_n=\frac{n}{n+2}\) है तो पहला पद जो \(\frac{4}{5}\) से बड़ा है कौन सा होगा?
If \(a_n=\frac{n}{n+2}\), which is the first term greater than \(\frac{4}{5}\)?
Explanation opens after your attempt
Correct Answer
A. (9)वाँ(9)th
Concept
From \(\frac{n}{n+2}>\frac{4}{5}\), we get (n>8). The first integer is (n=9).
Why this answer is correct
The correct answer is A. (9)वाँ / (9)th. From \(\frac{n}{n+2}>\frac{4}{5}\), we get (n>8). The first integer is (n=9).
Exam Tip
\(\frac{n}{n+2}>\frac{4}{5}\) से (n>8) मिलता है। पहला पूर्णांक (n=9) है।
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