यदि \(a_1=3\) और \(a_{n+1}=2a_n+5\) है तो \(a_4-a_2\) का मान क्या होगा?
If \(a_1=3\) and \(a_{n+1}=2a_n+5\), what is the value of \(a_4-a_2\)?
Explanation opens after your attempt
C. (48)
Concept
The terms are (3,11,27,59), so \(a_4-a_2=48\). Exam tip: find both terms first and subtract.
Why this answer is correct
The correct answer is C. (48). The terms are (3,11,27,59), so \(a_4-a_2=48\). Exam tip: find both terms first and subtract.
Exam Tip
पद (3,11,27,59) हैं इसलिए \(a_4-a_2=48\) है। पहले दोनों पद निकालकर घटाएँ।
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