Question 1012818
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E = { z | z > 4 }  F = { z | z ≤ 8 }  Write E ∪ F= and E ∩ F =
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E &#8746; F= the entire number line, or (-{{{infinity}}}, {{{infinity}}}).


E &#8745; F = {{{4 < z <= 8}}}, or (4,-8].
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