Question

Asked Mar 7, 2019

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sets C and D are sets of real numbers defined as follows.

C={y|y>4}

D={y|y≤5}

Write C∩D and C∪D

using interval notation.

If the set is empty, write

∅

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Step 1

The given sets are

C={y|y>4}

D={y|y≤5}

Step 2

To find the intersection of two sets *C* and *D.*

Intersections of two sets means the set of all elements that are common in both of the sets.

Step 3

To find the union of two sets *C* and *D.*

Union of two sets me...

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