समीकरण \(x^2-2x-1=0\) के मूलों की प्रकृति क्या है?
What is the nature of roots of \(x^2-2x-1=0\)?
Explanation opens after your attempt
Correct Answer
A. वास्तविक, अपरिमेय और भिन्नReal, irrational and distinct
Concept
(D=8>0), but (8) is not a perfect square. Hence the roots are real, irrational and distinct.
Why this answer is correct
The correct answer is A. वास्तविक, अपरिमेय और भिन्न / Real, irrational and distinct. (D=8>0), but (8) is not a perfect square. Hence the roots are real, irrational and distinct.
Exam Tip
(D=8>0) है लेकिन (8) पूर्ण वर्ग नहीं है। इसलिए मूल वास्तविक, अपरिमेय और भिन्न हैं।
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