Question: 4. For the following sets, prove A CB. A = {x|x e R such that x2 - 4x + 3 = 0; A= {...} B
4. For the following sets, prove A CB. A = {x|x e R such that x2 - 4x + 3 = 0; A= {...} B = {x|xe N and 1sxs4} B= {...}
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