\( \frac{1}{3\sqrt{2}+2\sqrt{5}} \) का परिमेय हर वाला रूप क्या है?
What is the rationalised form of \( \frac{1}{3\sqrt{2}+2\sqrt{5}} \)?
Explanation opens after your attempt
Correct Answer
B. \( \frac{2\sqrt{5}-3\sqrt{2}}{2} \)
Concept
Multiplying by the conjugate gives denominator (18-20=-2). So the form can be written as \( \frac{2\sqrt{5}-3\sqrt{2}}{2} \).
Why this answer is correct
The correct answer is B. \( \frac{2\sqrt{5}-3\sqrt{2}}{2} \). Multiplying by the conjugate gives denominator (18-20=-2). So the form can be written as \( \frac{2\sqrt{5}-3\sqrt{2}}{2} \).
Exam Tip
संयुग्मी से गुणा करने पर हर (18-20=-2) मिलता है। इसलिए रूप \( \frac{2\sqrt{5}-3\sqrt{2}}{2} \) लिखा जा सकता है।
Login to save your score, XP, coins and progress.