यदि \(x=\sqrt{5}+\sqrt{2}\) और \(y=\sqrt{5}-\sqrt{2}\) हैं, तो \(\frac{x}{y}\) का मान क्या है?
If \(x=\sqrt{5}+\sqrt{2}\) and \(y=\sqrt{5}-\sqrt{2}\), what is the value of \(\frac{x}{y}\)?
Explanation opens after your attempt
A. \(\frac{7+2\sqrt{10}}{3}\)
Concept
Multiply by the conjugate \(\sqrt{5}+\sqrt{2}\). The denominator is (5-2=3) and the numerator is \(7+2\sqrt{10}\).
Why this answer is correct
The correct answer is A. \(\frac{7+2\sqrt{10}}{3}\). Multiply by the conjugate \(\sqrt{5}+\sqrt{2}\). The denominator is (5-2=3) and the numerator is \(7+2\sqrt{10}\).
Exam Tip
हर के संयुग्मी \(\sqrt{5}+\sqrt{2}\) से गुणा करें। हर (5-2=3) और अंश \(7+2\sqrt{10}\) होगा।
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