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

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

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

C. (11)

Step 1

Concept

The terms are (2,4,7,11), so \(a_4=11\). Exam tip: (n+1) changes at every step.

Step 2

Why this answer is correct

The correct answer is C. (11). The terms are (2,4,7,11), so \(a_4=11\). Exam tip: (n+1) changes at every step.

Step 3

Exam Tip

पद (2,4,7,11) हैं इसलिए \(a_4=11\) है। (n+1) हर चरण में बदलता है।

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Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: C. (11). Explanation: पद (2,4,7,11) हैं इसलिए \(a_4=11\) है। (n+1) हर चरण में बदलता है। / The terms are (2,4,7,11), so \(a_4=11\). Exam tip: (n+1) changes at every step.

Which concept should I revise for this Mathematics MCQ?

The terms are (2,4,7,11), so \(a_4=11\). Exam tip: (n+1) changes at every step.

What exam hint can help solve this Mathematics question?

पद (2,4,7,11) हैं इसलिए \(a_4=11\) है। (n+1) हर चरण में बदलता है।