किस विकल्प में दो अपरिमेय संख्याओं का गुणनफल परिमेय है?
In which option is the product of two irrational numbers rational?
Explanation opens after your attempt
Correct Answer
D. \(\sqrt{12}\times\sqrt{3}\)
Concept
\(\sqrt{12}\times\sqrt{3}=\sqrt{36}=6\), which is rational. Check whether multiplication creates a perfect square.
Why this answer is correct
The correct answer is D. \(\sqrt{12}\times\sqrt{3}\). \(\sqrt{12}\times\sqrt{3}=\sqrt{36}=6\), which is rational. Check whether multiplication creates a perfect square.
Exam Tip
\(\sqrt{12}\times\sqrt{3}=\sqrt{36}=6\) है जो परिमेय है। विकल्पों में गुणन के बाद पूर्ण वर्ग बनने की जाँच करें।
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