Question

Form the intersection for the following sets.

X = {0, 10, 100, 1000)
Y = {100, 1000)
XnY=

Answer 1

The intersection of two sets is the set composed by the elements that the two sets have in common.

So, we have

`X\cap Y = \{100,\ 1000\}`

In this particular case, since Y is a subset of X, we have

`X\cap Y=Y`

In fact, all elements of Y are elements of X as well, so in particular they are common elements.