November 2018 1 10 Report

Dane są zbiory:

A = x \in R: 1 \leq |2x-11| \leq 7
B = x \in R : \sqrt {x^2+6x+9} = 7 + \sqrt {x^2-8x+16}

Wyznacz zbiory A \cap B, A \ B, B \ A


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