किस (x) के लिए (12,x,75) धनात्मक गुणोत्तर श्रेढ़ी के लगातार पद होंगे?
For which (x) will (12,x,75) be consecutive terms of a positive geometric progression?
Explanation opens after your attempt
B. (30)
Concept
\(x^2=12\cdot75=900\), so positive (x=30). The middle term is the geometric mean.
Why this answer is correct
The correct answer is B. (30). \(x^2=12\cdot75=900\), so positive (x=30). The middle term is the geometric mean.
Exam Tip
\(x^2=12\cdot75=900\), इसलिए धनात्मक (x=30)। मध्य पद ज्यामितीय माध्य होता है।
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