यदि \(a_1=2\), \(a_2=7\) और \(a_n=2a_{n-1}+a_{n-2}\) है तो \(a_4\) क्या होगा?

If \(a_1=2\), \(a_2=7\), and \(a_n=2a_{n-1}+a_{n-2}\), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (39)

Step 1

Concept

\(a_3=2\times7+2=16\) and \(a_4=2\times16+7=39\). Exam tip: write positions while using a two-term rule.

Step 2

Why this answer is correct

The correct answer is C. (39). \(a_3=2\times7+2=16\) and \(a_4=2\times16+7=39\). Exam tip: write positions while using a two-term rule.

Step 3

Exam Tip

\(a_3=2\times7+2=16\) और \(a_4=2\times16+7=39\) है। दो-पद नियम में क्रमांक साथ लिखें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=2\), \(a_2=7\) और \(a_n=2a_{n-1}+a_{n-2}\) है तो \(a_4\) क्या होगा? / If \(a_1=2\), \(a_2=7\), and \(a_n=2a_{n-1}+a_{n-2}\), what is \(a_4\)?

Correct Answer: C. (39). Explanation: \(a_3=2\times7+2=16\) और \(a_4=2\times16+7=39\) है। दो-पद नियम में क्रमांक साथ लिखें। / \(a_3=2\times7+2=16\) and \(a_4=2\times16+7=39\). Exam tip: write positions while using a two-term rule.

Which concept should I revise for this Mathematics MCQ?

\(a_3=2\times7+2=16\) and \(a_4=2\times16+7=39\). Exam tip: write positions while using a two-term rule.

What exam hint can help solve this Mathematics question?

\(a_3=2\times7+2=16\) और \(a_4=2\times16+7=39\) है। दो-पद नियम में क्रमांक साथ लिखें।