Hi Does anyone can help me to get the correct solutions for those problems? Thanx
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Hello, (i) True. Let x=1. There are no y, z satisfying x>y^2+z^2. (ii) True. For all u, you can always find some v such that u+v is a square. (iii) False. When u=w, no x satisfies u>wx and no v satisfies w>uv. Bye.
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