The second question, which equation says existence is? 1? Monotonically increasing interval neighborhood!
So in (-2? ,? 0.5) Is there? T & gt-2 and t+ 1
T is (-2, -0.5).
At (3,+infinity) t> three
T is (3,+infinity).
So the value is (-2, -0.5)U(3,+infinity).
You are drawing a picture yourself. Think about it! ! !
I hope it helps you! !