किस कथन में गुणोत्तर श्रेढ़ी \(40,20,10,5,\ldots\) का सही वर्णन है?
Which statement correctly describes the geometric progression \(40,20,10,5,\ldots\)?
Explanation opens after your attempt
Correct Answer
B. \(r=\frac{1}{2}\) और श्रेढ़ी घटती है\(r=\frac{1}{2}\) and the progression decreases
Concept
Each term is \(\frac{1}{2}\) of the previous term, so the progression decreases. Check both the value and direction of the ratio.
Why this answer is correct
The correct answer is B. \(r=\frac{1}{2}\) और श्रेढ़ी घटती है / \(r=\frac{1}{2}\) and the progression decreases. Each term is \(\frac{1}{2}\) of the previous term, so the progression decreases. Check both the value and direction of the ratio.
Exam Tip
हर पद पिछले पद का \(\frac{1}{2}\) है, इसलिए श्रेढ़ी घटती है। अनुपात की दिशा और मान दोनों देखें।
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