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

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

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (52)

Step 1

Concept

The added values are (4,13,36), so \(a_4=56\). Exam tip: calculate the power and square separately.

Step 2

Why this answer is correct

The correct answer is B. (52). The added values are (4,13,36), so \(a_4=56\). Exam tip: calculate the power and square separately.

Step 3

Exam Tip

जुड़ने वाले मान (4,13,36) हैं इसलिए \(a_4=56\) नहीं बल्कि (56) है। घात और वर्ग अलग-अलग निकालें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: B. (52). Explanation: जुड़ने वाले मान (4,13,36) हैं इसलिए \(a_4=56\) नहीं बल्कि (56) है। घात और वर्ग अलग-अलग निकालें। / The added values are (4,13,36), so \(a_4=56\). Exam tip: calculate the power and square separately.

Which concept should I revise for this Mathematics MCQ?

The added values are (4,13,36), so \(a_4=56\). Exam tip: calculate the power and square separately.

What exam hint can help solve this Mathematics question?

जुड़ने वाले मान (4,13,36) हैं इसलिए \(a_4=56\) नहीं बल्कि (56) है। घात और वर्ग अलग-अलग निकालें।