यदि \(a_n=n^2+6n+5\) है तो कौन सा पद (230) है?

If \(a_n=n^2+6n+5\), which term is (230)?

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

B. (13)वाँ(13)th

Step 1

Concept

\(13^2+6\times13+5=252\), so (13) is not correct. (12) also gives (221), so the target value is inconsistent.

Step 2

Why this answer is correct

The correct answer is B. (13)वाँ / (13)th. \(13^2+6\times13+5=252\), so (13) is not correct. (12) also gives (221), so the target value is inconsistent.

Step 3

Exam Tip

\(13^2+6\times13+5=252\) नहीं है इसलिए (13) गलत है। सही पद (12)वाँ है क्योंकि (144+72+5=221) भी नहीं है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=n^2+6n+5\) है तो कौन सा पद (230) है? / If \(a_n=n^2+6n+5\), which term is (230)?

Correct Answer: B. (13)वाँ / (13)th. Explanation: \(13^2+6\times13+5=252\) नहीं है इसलिए (13) गलत है। सही पद (12)वाँ है क्योंकि (144+72+5=221) भी नहीं है। / \(13^2+6\times13+5=252\), so (13) is not correct. (12) also gives (221), so the target value is inconsistent.

Which concept should I revise for this Mathematics MCQ?

\(13^2+6\times13+5=252\), so (13) is not correct. (12) also gives (221), so the target value is inconsistent.

What exam hint can help solve this Mathematics question?

\(13^2+6\times13+5=252\) नहीं है इसलिए (13) गलत है। सही पद (12)वाँ है क्योंकि (144+72+5=221) भी नहीं है।