यदि किसी गुणोत्तर श्रेणी में (a=7) और (r=4) है, तो \(a_7\) का मान क्या होगा?
If a geometric progression has (a=7) and (r=4), what is the value of \(a_7\)?
Explanation opens after your attempt
B. (28672)
Concept
\(a_7=7\cdot4^6=28672\). In exams, use \(r^6\) for the seventh term.
Why this answer is correct
The correct answer is B. (28672). \(a_7=7\cdot4^6=28672\). In exams, use \(r^6\) for the seventh term.
Exam Tip
\(a_7=7\cdot4^6=28672\) है। परीक्षा में सातवें पद के लिए \(r^6\) लगाएँ।
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