अनुक्रम \(3,8,18,38,\ldots\) के लिए कौन सा पुनरावर्ती नियम सही है?
Which recursive rule is correct for the sequence \(3,8,18,38,\ldots\)?
Explanation opens after your attempt
A. \(a_1=3, a_{n+1}=2a_n+2\)
Concept
\(2\times3+2=8\) and \(2\times8+2=18\). Exam tip: check the first two steps when choosing a rule.
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.
Exam Tip
\(2\times3+2=8\) और \(2\times8+2=18\) मिलता है। नियम चुनते समय पहले दो चरण जाँचें।
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