यदि \(B_1=11\) और \(B_n=B_{n-1}+2^n-n\) है, तो \(B_4\) का मान क्या होगा?

If \(B_1=11\) and \(B_n=B_{n-1}+2^n-n\), what is the value of \(B_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. तीस(30)

Step 1

Concept

\(B_4=11+2+5+12=30\). In exams, calculate \(2^n-n\) at each step.

Step 2

Why this answer is correct

The correct answer is A. तीस / (30). \(B_4=11+2+5+12=30\). In exams, calculate \(2^n-n\) at each step.

Step 3

Exam Tip

\(B_4=11+2+5+12=30\) है। परीक्षा में \(2^n-n\) को हर चरण पर निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(B_1=11\) और \(B_n=B_{n-1}+2^n-n\) है, तो \(B_4\) का मान क्या होगा? / If \(B_1=11\) and \(B_n=B_{n-1}+2^n-n\), what is the value of \(B_4\)?

Correct Answer: A. तीस / (30). Explanation: \(B_4=11+2+5+12=30\) है। परीक्षा में \(2^n-n\) को हर चरण पर निकालें। / \(B_4=11+2+5+12=30\). In exams, calculate \(2^n-n\) at each step.

Which concept should I revise for this Mathematics MCQ?

\(B_4=11+2+5+12=30\). In exams, calculate \(2^n-n\) at each step.

What exam hint can help solve this Mathematics question?

\(B_4=11+2+5+12=30\) है। परीक्षा में \(2^n-n\) को हर चरण पर निकालें।