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

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

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (23)

Step 1

Concept

\(a_3=7+2+3=12\) and \(a_4=12+7+4=23\). Exam tip: add current (n) with the previous two terms.

Step 2

Why this answer is correct

The correct answer is C. (23). \(a_3=7+2+3=12\) and \(a_4=12+7+4=23\). Exam tip: add current (n) with the previous two terms.

Step 3

Exam Tip

\(a_3=7+2+3=12\) और \(a_4=12+7+4=23\) है। पिछले दो पदों के साथ वर्तमान (n) जोड़ें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: C. (23). Explanation: \(a_3=7+2+3=12\) और \(a_4=12+7+4=23\) है। पिछले दो पदों के साथ वर्तमान (n) जोड़ें। / \(a_3=7+2+3=12\) and \(a_4=12+7+4=23\). Exam tip: add current (n) with the previous two terms.

Which concept should I revise for this Mathematics MCQ?

\(a_3=7+2+3=12\) and \(a_4=12+7+4=23\). Exam tip: add current (n) with the previous two terms.

What exam hint can help solve this Mathematics question?

\(a_3=7+2+3=12\) और \(a_4=12+7+4=23\) है। पिछले दो पदों के साथ वर्तमान (n) जोड़ें।