किसी अनुक्रम में \(w_1=1\) और \(w_n=w_{n-1}+3^{n-1}+1\) है। \(w_4\) का मान क्या होगा?

In a sequence, \(w_1=1\) and \(w_n=w_{n-1}+3^{n-1}+1\). What is the value of \(w_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. तैंतालीस(43)

Step 1

Concept

\(w_2=5\), \(w_3=15\), and \(w_4=43\). In exams, add (1) after \(3^{n-1}\) too.

Step 2

Why this answer is correct

The correct answer is D. तैंतालीस / (43). \(w_2=5\), \(w_3=15\), and \(w_4=43\). In exams, add (1) after \(3^{n-1}\) too.

Step 3

Exam Tip

\(w_2=5\), \(w_3=15\) और \(w_4=43\) है। परीक्षा में \(3^{n-1}\) के बाद (1) भी जोड़ें।

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किसी अनुक्रम में \(w_1=1\) और \(w_n=w_{n-1}+3^{n-1}+1\) है। \(w_4\) का मान क्या होगा? / In a sequence, \(w_1=1\) and \(w_n=w_{n-1}+3^{n-1}+1\). What is the value of \(w_4\)?

Correct Answer: D. तैंतालीस / (43). Explanation: \(w_2=5\), \(w_3=15\) और \(w_4=43\) है। परीक्षा में \(3^{n-1}\) के बाद (1) भी जोड़ें। / \(w_2=5\), \(w_3=15\), and \(w_4=43\). In exams, add (1) after \(3^{n-1}\) too.

Which concept should I revise for this Mathematics MCQ?

\(w_2=5\), \(w_3=15\), and \(w_4=43\). In exams, add (1) after \(3^{n-1}\) too.

What exam hint can help solve this Mathematics question?

\(w_2=5\), \(w_3=15\) और \(w_4=43\) है। परीक्षा में \(3^{n-1}\) के बाद (1) भी जोड़ें।