समीकरण \(x^2+13x+42=0\) के दोनों मूलों के चिन्ह कैसे होंगे?
What will be the signs of both roots of \(x^2+13x+42=0\)?
Explanation opens after your attempt
Correct Answer
A. दोनों ऋणात्मकBoth negative
Concept
The roots are (-6) and (-7) because ((x+6)(x+7)=0). When the sum is negative and product is positive, both roots are negative.
Why this answer is correct
The correct answer is A. दोनों ऋणात्मक / Both negative. The roots are (-6) and (-7) because ((x+6)(x+7)=0). When the sum is negative and product is positive, both roots are negative.
Exam Tip
मूल (-6) और (-7) हैं क्योंकि ((x+6)(x+7)=0)। योग ऋणात्मक और गुणनफल धनात्मक होने पर दोनों मूल ऋणात्मक होते हैं।
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