यदि (16,x,81) धनात्मक गुणोत्तर श्रेढ़ी के लगातार पद हैं, तो (x) क्या होगा?
If (16,x,81) are consecutive terms of a positive geometric progression, what will (x) be?
Explanation opens after your attempt
C. (36)
Concept
\(x^2=16\cdot81=1296\), so positive (x=36). The square of the middle term equals the product of the outer terms.
Why this answer is correct
The correct answer is C. (36). \(x^2=16\cdot81=1296\), so positive (x=36). The square of the middle term equals the product of the outer terms.
Exam Tip
\(x^2=16\cdot81=1296\), इसलिए धनात्मक (x=36)। मध्य पद का वर्ग बाहरी पदों के गुणनफल के बराबर होता है।
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