यदि (4,x,100) धनात्मक गुणोत्तर श्रेढ़ी के लगातार पद हैं, तो (x) का मान क्या है?
If (4,x,100) are consecutive terms of a positive geometric progression, what is the value of (x)?
Explanation opens after your attempt
A. (20)
Concept
\(x^2=4\cdot100=400\), so positive (x=20). The middle term is the geometric mean.
Why this answer is correct
The correct answer is A. (20). \(x^2=4\cdot100=400\), so positive (x=20). The middle term is the geometric mean.
Exam Tip
\(x^2=4\cdot100=400\), इसलिए धनात्मक (x=20)। मध्य पद ज्यामितीय माध्य होता है।
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