When expressing sets, you may write "inf" for infinity and "U" for union.

Write the complement of the given set in interval notation: (−5,6]

Respuesta :

Answer:

The complement of the given set in interval notation is[tex](-\infty,-5]\cup(6,\infty)[/tex]. It can we written as (-inf,5]U(6,inf).

Step-by-step explanation:

The given set in interval notation is

(−5,6]

It means the set is defined as

[tex]A=\{x|x\in R,-5<x\leq 6\}[/tex]

If B is a set and U is a universal set, then complement of set B contains the elements of universal set but not the elements of set B.

Here, universal set is R, the set set of all real numbers.

[tex]U=\{x|x\in R\}[/tex]

The complement of the given set is

[tex]A^c=U-A[/tex]

[tex]A^c=\{x|x\in R,-\infty<x\leq -5,6<x<\infty\}[/tex]

Complement of the given set in interval notation is

[tex]A^c=(-\infty,-5]\cup(6,\infty)[/tex]

Therefore the complement of the given set in interval notation is[tex](-\infty,-5]\cup(6,\infty)[/tex]. It can we written as (-inf,5]U(6,inf).