\( \sqrt{2} \), \( \sqrt{3} \), और \( \sqrt{5} \) से बना कौन सा गुणनफल परिमेय है?
Which product made from \( \sqrt{2} \), \( \sqrt{3} \), and \( \sqrt{5} \) is rational?
Explanation opens after your attempt
Correct Answer
A. \( \sqrt{2}\times\sqrt{8} \)
Concept
\( \sqrt{2}\times\sqrt{8}=\sqrt{16}=4 \), which is rational. The other products do not become square roots of perfect squares.
Why this answer is correct
The correct answer is A. \( \sqrt{2}\times\sqrt{8} \). \( \sqrt{2}\times\sqrt{8}=\sqrt{16}=4 \), which is rational. The other products do not become square roots of perfect squares.
Exam Tip
\( \sqrt{2}\times\sqrt{8}=\sqrt{16}=4 \) परिमेय है। बाकी गुणनफल पूर्ण वर्ग के वर्गमूल में नहीं बदलते।
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