यदि किसी द्विघात बहुपद के शून्यक \(3+\sqrt{5}\) और \(3-\sqrt{5}\) हैं, तो शून्यकों का योग क्या है?
If the zeroes of a quadratic polynomial are \(3+\sqrt{5}\) and \(3-\sqrt{5}\), what is their sum?
Explanation opens after your attempt
Correct Answer
B. (6)
Concept
The sum is (\(3+\sqrt{5}\)+\(3-\sqrt{5}\)=6). In conjugate irrationals the radical parts cancel.
Why this answer is correct
The correct answer is B. (6). The sum is (\(3+\sqrt{5}\)+\(3-\sqrt{5}\)=6). In conjugate irrationals the radical parts cancel.
Exam Tip
योग (\(3+\sqrt{5}\)+\(3-\sqrt{5}\)=6) है। संयुग्मी अपरिमेयों में वर्गमूल भाग कट जाता है।
Login to save your score, XP, coins and progress.