समीकरण \(x^2+15x+54=0\) का विविक्तकर और मूल प्रकृति कौन सी है?
What are the discriminant and root nature of \(x^2+15x+54=0\)?
Explanation opens after your attempt
A. (D=9), दो वास्तविक परिमेय असमान(D=9), two real rational distinct
Concept
Here (D=152-4(1)(54)=9). Since (9) is a perfect square, the roots are rational and distinct.
Why this answer is correct
The correct answer is A. (D=9), दो वास्तविक परिमेय असमान / (D=9), two real rational distinct. Here (D=152-4(1)(54)=9). Since (9) is a perfect square, the roots are rational and distinct.
Exam Tip
यहाँ (D=152-4(1)(54)=9) है। (9) पूर्ण वर्ग है, इसलिए मूल परिमेय और असमान हैं।
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