अनुक्रम \(6,14,26,42,\ldots\) के लिए \(a_n=2n^2+2n+2\) है। \(a_{15}-a_{13}\) का मान क्या है?
For the sequence \(6,14,26,42,\ldots\), \(a_n=2n^2+2n+2\). What is the value of \(a_{15}-a_{13}\)?
Explanation opens after your attempt
D. (116)
Concept
\(a_{15}=482\) and \(a_{13}=366\), so the difference is (116). Exam tip: find both terms separately first.
Why this answer is correct
The correct answer is D. (116). \(a_{15}=482\) and \(a_{13}=366\), so the difference is (116). Exam tip: find both terms separately first.
Exam Tip
\(a_{15}=482\) और \(a_{13}=366\) इसलिए अंतर (116) है। पहले दोनों पद अलग-अलग निकालें।
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