अनुक्रम \(3,8,18,38,\ldots\) के लिए कौन सा पुनरावर्ती नियम सही है?

Which recursive rule is correct for the sequence \(3,8,18,38,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. \(a_1=3, a_{n+1}=2a_n+2\)

Step 1

Concept

\(2\times3+2=8\) and \(2\times8+2=18\). Exam tip: check the first two steps when choosing a rule.

Step 2

Why this answer is correct

The correct answer is A. \(a_1=3, a_{n+1}=2a_n+2\). \(2\times3+2=8\) and \(2\times8+2=18\). Exam tip: check the first two steps when choosing a rule.

Step 3

Exam Tip

\(2\times3+2=8\) और \(2\times8+2=18\) मिलता है। नियम चुनते समय पहले दो चरण जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(3,8,18,38,\ldots\) के लिए कौन सा पुनरावर्ती नियम सही है? / Which recursive rule is correct for the sequence \(3,8,18,38,\ldots\)?

Correct Answer: A. \(a_1=3, a_{n+1}=2a_n+2\). Explanation: \(2\times3+2=8\) और \(2\times8+2=18\) मिलता है। नियम चुनते समय पहले दो चरण जाँचें। / \(2\times3+2=8\) and \(2\times8+2=18\). Exam tip: check the first two steps when choosing a rule.

Which concept should I revise for this Mathematics MCQ?

\(2\times3+2=8\) and \(2\times8+2=18\). Exam tip: check the first two steps when choosing a rule.

What exam hint can help solve this Mathematics question?

\(2\times3+2=8\) और \(2\times8+2=18\) मिलता है। नियम चुनते समय पहले दो चरण जाँचें।