Video Transcript
Use the Venn diagram below to find ๐ต โช ๐ถ.
This symbol in the question represents the idea of a union between two sets. And here weโre talking about the union between set ๐ต, which is represented here by the orange oval in the Venn diagram, and also set ๐ถ, which is the blue circle in our Venn diagram. The union between two sets means we need to include all the elements in both and in either set. In other words, if we put both sets together, we make a union between both sets. What elements do we have?
The elements of set ๐ต are all the numbers that are in the orange oval. So the elements are two, four, eight, nine, and one. The elements of set ๐ถ are all the numbers that are in the blue circle. So thatโs nine, one, three, and six. Notice that two of our numbers appear in both sets.
Of course, in our Venn diagram, this is the part where our oval and our circle overlap. We can see the nine and the one in there. But the union between ๐ต and ๐ถ must contain all the elements in both sets, which is nine and one, and in either set. In other words, all of the elements. And so ๐ต โช ๐ถ equals two, eight, four, nine, one, six, and three. This is the set we get when we combine sets ๐ต and ๐ถ together.
