यदि किसी परिमेय गुणांकों वाले द्विघात बहुपद का एक शून्यक \(\frac{3+\sqrt{5}}{2}\) है, तो दूसरा शून्यक क्या होगा?
Explanation opens after your attempt
Correct Answer
A. \(\frac{3-\sqrt{5}}{2}\)
Concept
With rational coefficients, the conjugate of the irrational part is also a zero. Hence \(\frac{3-\sqrt{5}}{2}\) is the other zero.
Why this answer is correct
The correct answer is A. \(\frac{3-\sqrt{5}}{2}\). With rational coefficients, the conjugate of the irrational part is also a zero. Hence \(\frac{3-\sqrt{5}}{2}\) is the other zero.
Exam Tip
परिमेय गुणांकों में अपरिमेय भाग का संयुग्मी भी शून्यक होता है। इसलिए \(\frac{3-\sqrt{5}}{2}\) दूसरा शून्यक है।
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