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Darina [25.2K]
2 years ago
12

Please help! write D u E and D n E using interval notation.

Mathematics
1 answer:
babunello [35]2 years ago
4 0

<u>Part 1</u>

<u />D \cup E denotes the union of the two sets (in other words, all the elements in both sets).

This means it is (-\infty, 4) \cup [7, \infty)

<u>Part 2</u>

<u />D \cap E denotes the elements shared between both sets.

This means the answer is (4, 7]

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Step-by-step explanation:

Here, assume such number = m

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Now, according to the question:

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