यदि \(a_1=6\), \(a_2=10\) और \(a_n=2a_{n-1}+a_{n-2}-n\) है तो \(a_3\) क्या होगा?

If \(a_1=6\), \(a_2=10\), and \(a_n=2a_{n-1}+a_{n-2}-n\), what is \(a_3\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (23)

Step 1

Concept

\(a_3=2\times10+6-3=23\). Exam tip: subtract the current (n) in this two-term rule.

Step 2

Why this answer is correct

The correct answer is B. (23). \(a_3=2\times10+6-3=23\). Exam tip: subtract the current (n) in this two-term rule.

Step 3

Exam Tip

\(a_3=2\times10+6-3=23\) है। दो-पद नियम में वर्तमान (n) भी घटाएँ।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=6\), \(a_2=10\) और \(a_n=2a_{n-1}+a_{n-2}-n\) है तो \(a_3\) क्या होगा? / If \(a_1=6\), \(a_2=10\), and \(a_n=2a_{n-1}+a_{n-2}-n\), what is \(a_3\)?

Correct Answer: B. (23). Explanation: \(a_3=2\times10+6-3=23\) है। दो-पद नियम में वर्तमान (n) भी घटाएँ। / \(a_3=2\times10+6-3=23\). Exam tip: subtract the current (n) in this two-term rule.

Which concept should I revise for this Mathematics MCQ?

\(a_3=2\times10+6-3=23\). Exam tip: subtract the current (n) in this two-term rule.

What exam hint can help solve this Mathematics question?

\(a_3=2\times10+6-3=23\) है। दो-पद नियम में वर्तमान (n) भी घटाएँ।