गुणोत्तर श्रेणी \(3,12,48,192,\ldots\) में (3072) कौन-सा पद है?
In the geometric progression \(3,12,48,192,\ldots\), which term is (3072)?
Explanation opens after your attempt
A. छठा पद(6)th term
Concept
From \(3\cdot4^{n-1}=3072\), \(4^{n-1}=1024=4^5\) so (n=6). In exams equate powers to find (n).
Why this answer is correct
The correct answer is A. छठा पद / (6)th term. From \(3\cdot4^{n-1}=3072\), \(4^{n-1}=1024=4^5\) so (n=6). In exams equate powers to find (n).
Exam Tip
\(3\cdot4^{n-1}=3072\) से \(4^{n-1}=1024=4^5\) इसलिए (n=6) है। परीक्षा में घातों को बराबर करके (n) निकालें।
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