\(x^2-2x+5=0\) में पूर्ण वर्ग बनाने पर कौनसा रूप बनेगा?
What form is obtained by completing the square in \(x^2-2x+5=0\)?
Explanation opens after your attempt
Correct Answer
A. ((x-1)2+4=0)
Concept
(x-2-2x+5=(x-1)2+4), so no real roots are obtained. In exams, the completed square form also shows the nature of roots.
Why this answer is correct
The correct answer is A. ((x-1)2+4=0). (x-2-2x+5=(x-1)2+4), so no real roots are obtained. In exams, the completed square form also shows the nature of roots.
Exam Tip
(x-2-2x+5=(x-1)2+4), इसलिए वास्तविक मूल नहीं मिलते। परीक्षा में पूर्ण वर्ग रूप से भी मूलों की प्रकृति समझ सकते हैं।
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