Question

ma poate ajuta cineva la aceste exerciții
va rog​

Answer 1

Răspuns:

9. 3×8=2x

24=2x

2x=24

x=24÷2

x=12

1.A={4,7,2,8,11}

B={2,3,4,5,6,7,8,9}

A U B={2,3,4,5,6,7,8,9,11}

A u intors B={ 4,7,2,8}

A\B={11}

B\A={3,5,6,9}