समीकरण \(x^2-9=0\) के मूलों की प्रकृति क्या है?
What is the nature of roots of \(x^2-9=0\)?
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Correct Answer
A. दो वास्तविक और असमानtwo real and distinct
Concept
Here (D=02-4(1)(-9)=36>0). So the roots are real and distinct.
Why this answer is correct
The correct answer is A. दो वास्तविक और असमान / two real and distinct. Here (D=02-4(1)(-9)=36>0). So the roots are real and distinct.
Exam Tip
यहां (D=02-4(1)(-9)=36>0) है। इसलिए मूल वास्तविक और असमान हैं।
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