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 \(a_{15}-a_{13}\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. (116)

Step 1

Concept

\(a_{15}=482\) and \(a_{13}=366\), so the difference is (116). Exam tip: find both terms separately first.

Step 2

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.

Step 3

Exam Tip

\(a_{15}=482\) और \(a_{13}=366\) इसलिए अंतर (116) है। पहले दोनों पद अलग-अलग निकालें।

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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 \(a_{15}-a_{13}\)?

Correct Answer: D. (116). Explanation: \(a_{15}=482\) और \(a_{13}=366\) इसलिए अंतर (116) है। पहले दोनों पद अलग-अलग निकालें। / \(a_{15}=482\) and \(a_{13}=366\), so the difference is (116). Exam tip: find both terms separately first.

Which concept should I revise for this Mathematics MCQ?

\(a_{15}=482\) and \(a_{13}=366\), so the difference is (116). Exam tip: find both terms separately first.

What exam hint can help solve this Mathematics question?

\(a_{15}=482\) और \(a_{13}=366\) इसलिए अंतर (116) है। पहले दोनों पद अलग-अलग निकालें।