यदि x एवं y अशून्य वास्तविक संख्याएं है ...

यदि x एवं y अशून्य वास्तविक संख्याएं है जो समीकरण `xy (x^(2) - y^(2)) = x^(2) + y^(2)` को संतुष्ट करती है, तो `x^(2) + y^(2)` का न्यूनतम मान ज्ञात करो |

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