यदि \(a_1=1\), \(a_2=3\) और \(a_n=2a_{n-1}+a_{n-2}\) है तो \(a_4\) क्या होगा?

If \(a_1=1\), \(a_2=3\), and \(a_n=2a_{n-1}+a_{n-2}\), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

C. (17)

Step 1

Concept

The terms are (1,3,7,17), so \(a_4=17\). Exam tip: multiply \(a_{n-1}\) by (2) in this two-term rule.

Step 2

Why this answer is correct

The correct answer is C. (17). The terms are (1,3,7,17), so \(a_4=17\). Exam tip: multiply \(a_{n-1}\) by (2) in this two-term rule.

Step 3

Exam Tip

पद (1,3,7,17) हैं इसलिए \(a_4=17\) है। दो-पद नियम में \(a_{n-1}\) को (2) से गुणा करें।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=1\), \(a_2=3\) और \(a_n=2a_{n-1}+a_{n-2}\) है तो \(a_4\) क्या होगा? / If \(a_1=1\), \(a_2=3\), and \(a_n=2a_{n-1}+a_{n-2}\), what is \(a_4\)?

Correct Answer: C. (17). Explanation: पद (1,3,7,17) हैं इसलिए \(a_4=17\) है। दो-पद नियम में \(a_{n-1}\) को (2) से गुणा करें। / The terms are (1,3,7,17), so \(a_4=17\). Exam tip: multiply \(a_{n-1}\) by (2) in this two-term rule.

Which concept should I revise for this Mathematics MCQ?

The terms are (1,3,7,17), so \(a_4=17\). Exam tip: multiply \(a_{n-1}\) by (2) in this two-term rule.

What exam hint can help solve this Mathematics question?

पद (1,3,7,17) हैं इसलिए \(a_4=17\) है। दो-पद नियम में \(a_{n-1}\) को (2) से गुणा करें।