समीकरण \(x^2-18x+81=0\) के मूलों का योग और गुणनफल क्रमशः क्या हैं?
For \(x^2-18x+81=0\), what are the sum and product of roots respectively?
Explanation opens after your attempt
A. (18) और (81)(18) and (81)
Concept
It is ((x-9)2=0), so both roots are (9). The sum is (18) and the product is (81).
Why this answer is correct
The correct answer is A. (18) और (81) / (18) and (81). It is ((x-9)2=0), so both roots are (9). The sum is (18) and the product is (81).
Exam Tip
यह ((x-9)2=0) है इसलिए दोनों मूल (9) हैं। योग (18) और गुणनफल (81) होगा।
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