यदि (p(x)=x-2+2\sqrt{7}x+6), तो विविक्तकर क्या है?
If (p(x)=x-2+2\sqrt{7}x+6), what is the discriminant?
Explanation opens after your attempt
A. (4)
Concept
(D=\(2\sqrt{7}\)2-4\cdot1\cdot6=28-24=4). Even with an irrational coefficient, the discriminant can be rational.
Why this answer is correct
The correct answer is A. (4). (D=\(2\sqrt{7}\)2-4\cdot1\cdot6=28-24=4). Even with an irrational coefficient, the discriminant can be rational.
Exam Tip
(D=\(2\sqrt{7}\)2-4\cdot1\cdot6=28-24=4)। अपरिमेय गुणांक होने पर भी विविक्तकर परिमेय हो सकता है।
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