अनुक्रम \(3,12,27,48,75,\ldots\) का सामान्य पद \(a_n=3n^2\) है। \(a_8-a_6\) क्या है?

The sequence \(3,12,27,48,75,\ldots\) has general term \(a_n=3n^2\). What is \(a_8-a_6\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (84)

Step 1

Concept

\(a_8=192\) and \(a_6=108\), so the difference is (84). Exam tip: find both terms and then subtract.

Step 2

Why this answer is correct

The correct answer is C. (84). \(a_8=192\) and \(a_6=108\), so the difference is (84). Exam tip: find both terms and then subtract.

Step 3

Exam Tip

\(a_8=192\) और \(a_6=108\) इसलिए अंतर (84) है। दोनों पद निकालकर घटाएँ।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(3,12,27,48,75,\ldots\) का सामान्य पद \(a_n=3n^2\) है। \(a_8-a_6\) क्या है? / The sequence \(3,12,27,48,75,\ldots\) has general term \(a_n=3n^2\). What is \(a_8-a_6\)?

Correct Answer: C. (84). Explanation: \(a_8=192\) और \(a_6=108\) इसलिए अंतर (84) है। दोनों पद निकालकर घटाएँ। / \(a_8=192\) and \(a_6=108\), so the difference is (84). Exam tip: find both terms and then subtract.

Which concept should I revise for this Mathematics MCQ?

\(a_8=192\) and \(a_6=108\), so the difference is (84). Exam tip: find both terms and then subtract.

What exam hint can help solve this Mathematics question?

\(a_8=192\) और \(a_6=108\) इसलिए अंतर (84) है। दोनों पद निकालकर घटाएँ।