यदि \(a_1=200\) और (a_{n+1}=a_n-\(3^n+n\)) है तो \(a_4\) क्या होगा?

If \(a_1=200\) and (a_{n+1}=a_n-\(3^n+n\)), what is \(a_4\)?

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

A. (155)

Step 1

Concept

The subtracted values are (4,11,30), so \(a_4=155\). Exam tip: first calculate the full value of \(3^n+n\).

Step 2

Why this answer is correct

The correct answer is A. (155). The subtracted values are (4,11,30), so \(a_4=155\). Exam tip: first calculate the full value of \(3^n+n\).

Step 3

Exam Tip

घटने वाले मान (4,11,30) हैं इसलिए \(a_4=155\) है। \(3^n+n\) को पहले पूरा निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=200\) और (a_{n+1}=a_n-\(3^n+n\)) है तो \(a_4\) क्या होगा? / If \(a_1=200\) and (a_{n+1}=a_n-\(3^n+n\)), what is \(a_4\)?

Correct Answer: A. (155). Explanation: घटने वाले मान (4,11,30) हैं इसलिए \(a_4=155\) है। \(3^n+n\) को पहले पूरा निकालें। / The subtracted values are (4,11,30), so \(a_4=155\). Exam tip: first calculate the full value of \(3^n+n\).

Which concept should I revise for this Mathematics MCQ?

The subtracted values are (4,11,30), so \(a_4=155\). Exam tip: first calculate the full value of \(3^n+n\).

What exam hint can help solve this Mathematics question?

घटने वाले मान (4,11,30) हैं इसलिए \(a_4=155\) है। \(3^n+n\) को पहले पूरा निकालें।