यदि \(a_1=2\) और \(a_{n+1}=2a_n+1\) है तो \(a_4\) क्या होगा?
If \(a_1=2\) and \(a_{n+1}=2a_n+1\), what is \(a_4\)?
Explanation opens after your attempt
D. (23)
Concept
The terms are (2,5,11,23), so \(a_4=23\). Exam tip: double first and then add (1).
Why this answer is correct
The correct answer is D. (23). The terms are (2,5,11,23), so \(a_4=23\). Exam tip: double first and then add (1).
Exam Tip
पद (2,5,11,23) हैं इसलिए \(a_4=23\) है। पहले दोगुना करें फिर (1) जोड़ें।
Login to save your score, XP, coins and progress.
