when expressing sets, you may write "inf" for infinity and "u" for union.
write the complement of the given set in interval notation: (−[infinity],−5]

(-5,)

Step-by-step explanation:

We are given that a set in interval form

(-,-5]

We have to find the complement of the given set.

Complement of set :If U={1,2,3,4} and A={1,2}

Then , complement of set A=U-A={3,4}

Therefore, here R=U

A=(-,-5]

Complement of A=R-(-,-5]=(-5,)

Hence, the complement of given set=(-5,)