यदि \(a_1=9\) और \(a_{n+1}=a_n+2n-2\) है तो \(a_5\) क्या होगा?

If \(a_1=9\) and \(a_{n+1}=a_n+2n-2\), what is \(a_5\)?

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

C. (25)

Step 1

Concept

The terms are (9,9,11,15,21), so \(a_5=21\). The correct option should include (21).

Step 2

Why this answer is correct

The correct answer is C. (25). The terms are (9,9,11,15,21), so \(a_5=21\). The correct option should include (21).

Step 3

Exam Tip

पद (9,9,11,15,21) नहीं बल्कि \(a_5=21\) है। सही विकल्प में (21) होना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=9\) और \(a_{n+1}=a_n+2n-2\) है तो \(a_5\) क्या होगा? / If \(a_1=9\) and \(a_{n+1}=a_n+2n-2\), what is \(a_5\)?

Correct Answer: C. (25). Explanation: पद (9,9,11,15,21) नहीं बल्कि \(a_5=21\) है। सही विकल्प में (21) होना चाहिए। / The terms are (9,9,11,15,21), so \(a_5=21\). The correct option should include (21).

Which concept should I revise for this Mathematics MCQ?

The terms are (9,9,11,15,21), so \(a_5=21\). The correct option should include (21).

What exam hint can help solve this Mathematics question?

पद (9,9,11,15,21) नहीं बल्कि \(a_5=21\) है। सही विकल्प में (21) होना चाहिए।