Question

doar ex.13 va rooog urgentttt

Answer 1

Răspuns:

Explicație pas cu pas:

I1=[2,4)    si I2=(1,3]

___-2___0__1____3___4_____

       I......................................)

                      (............]

I1∪I2=[-2,4)

I1∩I2=(1,3]

I2∩N={2,3}

I1∩Z={-2,-1,0,1,2,3}