yara: the area that lies either to the left of 1.56 or to the right of 2.30
I think there is a part missing of your question. Is there a drawing, an equation or something like that which gives me some more information?
Look at this number line:
number line.png
The area in your question is indicated as red.
This means it goes from -infinity to 1.56 or from 2.30 to infinity and therefore the answer would be infinite which is probably not what you're looking for.
Reinout