Set Theoryhard
0:00.0

Given A={xR:x210}A = \{x \in \mathbb{R} : x^2 - 1 \leq 0\} and B={xR:x24x+30}B = \{x \in \mathbb{R} : x^2 - 4x + 3 \leq 0\}, find AΔBA \Delta B.