यदि \(a_1=3\) और \(a_{n+1}=a_n+2n+1\) है तो \(a_5\) क्या होगा?

If \(a_1=3\) and \(a_{n+1}=a_n+2n+1\), what is \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (27)

Step 1

Concept

The terms are (3,6,11,18,27), so \(a_5=27\). Exam tip: use the changing value of (n) correctly at each step.

Step 2

Why this answer is correct

The correct answer is C. (27). The terms are (3,6,11,18,27), so \(a_5=27\). Exam tip: use the changing value of (n) correctly at each step.

Step 3

Exam Tip

पद (3,6,11,18,27) मिलते हैं इसलिए \(a_5=27\) है। बदलते (n) का मान हर चरण में सही रखें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=3\) और \(a_{n+1}=a_n+2n+1\) है तो \(a_5\) क्या होगा? / If \(a_1=3\) and \(a_{n+1}=a_n+2n+1\), what is \(a_5\)?

Correct Answer: C. (27). Explanation: पद (3,6,11,18,27) मिलते हैं इसलिए \(a_5=27\) है। बदलते (n) का मान हर चरण में सही रखें। / The terms are (3,6,11,18,27), so \(a_5=27\). Exam tip: use the changing value of (n) correctly at each step.

Which concept should I revise for this Mathematics MCQ?

The terms are (3,6,11,18,27), so \(a_5=27\). Exam tip: use the changing value of (n) correctly at each step.

What exam hint can help solve this Mathematics question?

पद (3,6,11,18,27) मिलते हैं इसलिए \(a_5=27\) है। बदलते (n) का मान हर चरण में सही रखें।