What kind of mathematical form do you need to write to find the range of x? For example: ① 1① indicates the value range of x.② indicates the value range of x.③ means 1How t

What kind of mathematical form do you need to write to find the range of x? For example: ① 1

① indicates the value range of x.

② indicates the value range of x.

③ means 1

How t

What kind of mathematical form do you need to write to find the range of x? For example: ① 1

① indicates the value range of x.

② indicates the value range of x.

③ means 1

How to ask questions in what form?

The marking teacher won't give you marks because you use intervals to represent ranges.