Answer
It is the set of students who are majoring in either math or computer science but not those who are majoring in math and computer science.
Work Step by Step
Let's take the set M and C, where M is the set of students majoring in Math and C is the set of students majoring in computer science.
The symmetric difference is denoted by C $\oplus$ M.
The symmetric difference means that it is a set containing elements that are in either C or M but not in both of them.
