यदि (p(x)=x-2+2x-1) है, तो इसके शून्यक कौन से हैं?
If (p(x)=x-2+2x-1), what are its zeroes?
Explanation opens after your attempt
Correct Answer
A. \(-1+\sqrt{2}\) और \(-1-\sqrt{2}\)\(-1+\sqrt{2}\) and \(-1-\sqrt{2}\)
Concept
By the formula, \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\). Pay special attention to signs.
Why this answer is correct
The correct answer is A. \(-1+\sqrt{2}\) और \(-1-\sqrt{2}\) / \(-1+\sqrt{2}\) and \(-1-\sqrt{2}\). By the formula, \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\). Pay special attention to signs.
Exam Tip
सूत्र से \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\)। चिह्नों पर विशेष ध्यान दें।
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