Write the set of points from -4 to 3 but excluding -1 and 3 as a union of intervals

In this question, we have to write a set of points  from -4 to 3 but excluding -1 and 3 as a union of intervals .

Set of points from -4 to 3 can be written as

But we need to exclude -1 and 3 and write the final answer in union of sets .

So we put -1 and 3 in the intervals and put () with these numbers, that is

And that's the final answer .

answer: its c because when it has a magnet next to it it will move away from the mixture. hope this

step-by-step explanation: