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Which number is irrational but its square is rational?कौन सी संख्या अपरिमेय है लेकिन उसका वर्ग परिमेय है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\sqrt{11})(\sqrt{11})
Step 1: (\sqrt{11}) is irrational because (11) is not a perfect square. Step 2: ((\sqrt{11})^2=11) which is rational. Step 3: Squaring may remove the radical.चरण 1: (\sqrt{11}) अपरिमेय है क्योंकि (11) पूर्ण वर्ग नहीं है। चरण 2: ((\sqrt{11})^2=11) परिमेय है। चरण 3: वर्ग करने पर वर्गमूल हट सकता है।
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