Question

Determine a união dos seguintes intervelos:
a)[1,3] ∩ [2,5]
b)[-2,3] ∩ [0,6]
c) ]-3,2] ∩ [2,5]
d)]1,3 ∩ ] -∞,8]
e)[-1,3] ∩ [0, +∞[

Answer 1

a) [2,3]
b) [0,3]
c) {2}
d) [1,3]
e) [0,3]