गुणोत्तर श्रेणी \(6,18,54,162,\ldots\) में (4374) कौन-सा पद है?
In the geometric progression \(6,18,54,162,\ldots\), which term is (4374)?
Explanation opens after your attempt
B. सातवाँ पद(7)th term
Concept
From \(6\cdot3^{n-1}=4374\), \(3^{n-1}=729=3^6\), so (n=7). In exams, equate powers to find (n).
Why this answer is correct
The correct answer is B. सातवाँ पद / (7)th term. From \(6\cdot3^{n-1}=4374\), \(3^{n-1}=729=3^6\), so (n=7). In exams, equate powers to find (n).
Exam Tip
\(6\cdot3^{n-1}=4374\) से \(3^{n-1}=729=3^6\), इसलिए (n=7) है। परीक्षा में घातों को बराबर करके (n) निकालें।
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