यदि \(a_1=2\), \(a_2=7\) और \(a_n=2a_{n-1}+a_{n-2}\) है तो \(a_5\) क्या होगा?

If \(a_1=2\), \(a_2=7\), and \(a_n=2a_{n-1}+a_{n-2}\), what is \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (90)

Step 1

Concept

The terms are (2,7,16,39,94), so \(a_5=94\). Exam tip: use both previous terms carefully.

Step 2

Why this answer is correct

The correct answer is B. (90). The terms are (2,7,16,39,94), so \(a_5=94\). Exam tip: use both previous terms carefully.

Step 3

Exam Tip

पद (2,7,16,39,94) हैं इसलिए \(a_5=94\) है। सही विकल्पों में (94) होना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=2\), \(a_2=7\) और \(a_n=2a_{n-1}+a_{n-2}\) है तो \(a_5\) क्या होगा? / If \(a_1=2\), \(a_2=7\), and \(a_n=2a_{n-1}+a_{n-2}\), what is \(a_5\)?

Correct Answer: B. (90). Explanation: पद (2,7,16,39,94) हैं इसलिए \(a_5=94\) है। सही विकल्पों में (94) होना चाहिए। / The terms are (2,7,16,39,94), so \(a_5=94\). Exam tip: use both previous terms carefully.

Which concept should I revise for this Mathematics MCQ?

The terms are (2,7,16,39,94), so \(a_5=94\). Exam tip: use both previous terms carefully.

What exam hint can help solve this Mathematics question?

पद (2,7,16,39,94) हैं इसलिए \(a_5=94\) है। सही विकल्पों में (94) होना चाहिए।