गुणोत्तर श्रेणी \(8,16,32,64,\ldots\) का \(a_9\div a_4\) क्या होगा?
What is \(a_9\div a_4\) for the geometric progression \(8,16,32,64,\ldots\)?
Explanation opens after your attempt
Correct Answer
B. (32)
Concept
The position gap is (5) and (r=2), so the ratio is \(2^5=32\). In exams, use \(\frac{a_m}{a_n}=r^{m-n}\).
Why this answer is correct
The correct answer is B. (32). The position gap is (5) and (r=2), so the ratio is \(2^5=32\). In exams, use \(\frac{a_m}{a_n}=r^{m-n}\).
Exam Tip
पद-संख्या का अंतर (5) है और (r=2), इसलिए अनुपात \(2^5=32\) है। परीक्षा में \(\frac{a_m}{a_n}=r^{m-n}\) लगाएँ।
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