गुणोत्तर श्रेणी \(13,39,117,\ldots\) में \(a_7\) क्या है?
What is \(a_7\) in the geometric progression \(13,39,117,\ldots\)?
Explanation opens after your attempt
Correct Answer
A. (9477)
Concept
\(a_7=13\cdot3^6=9477\). In exams, use \(r^6\) for the seventh term.
Why this answer is correct
The correct answer is A. (9477). \(a_7=13\cdot3^6=9477\). In exams, use \(r^6\) for the seventh term.
Exam Tip
\(a_7=13\cdot3^6=9477\) है। परीक्षा में सातवें पद के लिए \(r^6\) लगाएँ।
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