Question

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Answer 1

A= { x e R/ -1<= x < +...}
B={ x e R / -1 < = x <= 2}
c={ x e R/ 1 <x <= 2}
d={ x e R/ 1<x<= 2}
e={ x e R/ -1<= x < +...}
f={ x e R / -... < x< +...}
g={ x e R / -...<x < +...}
f={x e R / -1 <= x <=1}
i={x e R / 2<= x < =...}
j={x e R/ -1 <= x <= 2}