√2: s, 1€ Q}. Show that K satisfies the following: K, then x₁ + x₂ € K and X₁ X₂ € K. 9. Let K:= {s + (a) If x₁, x₂ (b) If x 0 and x € K, then 1/x € K. (Thus the set K is a sub field of R. With the order inherited from R, the set K is an ordered field that lies between Q and R.)

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