Question

dados os conjuntos A = {x ∈ R/-1 < x ≤ 2 }
B = {x ∈ IR/ -2 ≤ x ≤4}
C = {x ∈ IR;/ -5 < x<0}

Represente graficamente (A∩B; ∪ C; (por meio de retas ordenadas)

Answer 1

$A ------\circ^{-1}xxxxxxxxxx \bullet^2------ \\ B ---\bullet^{-2}xxxxxxxxxxxxxxxxxxxxxxxx\bullet^4--- \\ \\ A\bigcap B----\circ^{-1}xxxxxxxxxxx\bullet^2------ \\ \\ ------------------------ \\ \\ A\bigcap B~~~~~~-------\circ^{-1}xxxxxxxxxx\circ^2--- \\ C~~~~~~~~~~---\circ^{-5}xxxxxxxxxxx\circ^0-------- \\ \\ (A\bigcap B)\bigcup C~--\circ^{-5}xxxxxxxxxxxxxxxxx \circ^2----$