Mathematics, 20.07.2020 01:01 luckylady

If r={(x, y)|x^2+y^2=a^2} is a relation then its inverse r'={(x, y)|y^2+x^2=a^2} would be same as r, why is that, can someone please explain it with detail.

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If r={(x, y)|x^2+y^2=a^2} is a relation then its inverse r'={(x, y)|y^2+x^2=a^2} would be same as r,...