यदि \(a_1=150\) और (a_{n+1}=a_n-\(n^2+2n\)) है तो \(a_5\) क्या होगा?

If \(a_1=150\) and (a_{n+1}=a_n-\(n^2+2n\)), what is \(a_5\)?

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

B. (100)

Step 1

Concept

The subtracted values are (3,8,15,24), so \(a_5=100\). Exam tip: write all changing subtractions separately first.

Step 2

Why this answer is correct

The correct answer is B. (100). The subtracted values are (3,8,15,24), so \(a_5=100\). Exam tip: write all changing subtractions separately first.

Step 3

Exam Tip

घटने वाले मान (3,8,15,24) हैं इसलिए \(a_5=100\) है। पहले सभी बदलते घटावों को अलग लिखें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=150\) और (a_{n+1}=a_n-\(n^2+2n\)) है तो \(a_5\) क्या होगा? / If \(a_1=150\) and (a_{n+1}=a_n-\(n^2+2n\)), what is \(a_5\)?

Correct Answer: B. (100). Explanation: घटने वाले मान (3,8,15,24) हैं इसलिए \(a_5=100\) है। पहले सभी बदलते घटावों को अलग लिखें। / The subtracted values are (3,8,15,24), so \(a_5=100\). Exam tip: write all changing subtractions separately first.

Which concept should I revise for this Mathematics MCQ?

The subtracted values are (3,8,15,24), so \(a_5=100\). Exam tip: write all changing subtractions separately first.

What exam hint can help solve this Mathematics question?

घटने वाले मान (3,8,15,24) हैं इसलिए \(a_5=100\) है। पहले सभी बदलते घटावों को अलग लिखें।