यदि \(a_1=50\) और (a_{n+1}=a_n-(2n+3)) है तो \(a_4\) क्या होगा?

If \(a_1=50\) and (a_{n+1}=a_n-(2n+3)), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (29)

Step 1

Concept

The terms are (50,45,38,29), so \(a_4=29\). Exam tip: calculate (2n+3) before subtracting.

Step 2

Why this answer is correct

The correct answer is A. (29). The terms are (50,45,38,29), so \(a_4=29\). Exam tip: calculate (2n+3) before subtracting.

Step 3

Exam Tip

पद (50,45,38,29) हैं इसलिए \(a_4=29\) है। (2n+3) को घटाने से पहले सही मान निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=50\) और (a_{n+1}=a_n-(2n+3)) है तो \(a_4\) क्या होगा? / If \(a_1=50\) and (a_{n+1}=a_n-(2n+3)), what is \(a_4\)?

Correct Answer: A. (29). Explanation: पद (50,45,38,29) हैं इसलिए \(a_4=29\) है। (2n+3) को घटाने से पहले सही मान निकालें। / The terms are (50,45,38,29), so \(a_4=29\). Exam tip: calculate (2n+3) before subtracting.

Which concept should I revise for this Mathematics MCQ?

The terms are (50,45,38,29), so \(a_4=29\). Exam tip: calculate (2n+3) before subtracting.

What exam hint can help solve this Mathematics question?

पद (50,45,38,29) हैं इसलिए \(a_4=29\) है। (2n+3) को घटाने से पहले सही मान निकालें।