Question

ex 22 va rogg
imi trebuie neaparat .
plss

Answer 1

a=[32-2*(25-3*5)]
  =(32-20)
  =12
b=7 la puterea 10 : 7 la puterea 9
  =7
c=(3 la 14 : 3 la 12 -5 la 35: 5 la 34):2
   =(9-5):2
   =2
A={1,2,3,4,5,6}
B={3,4,5,6,7,8}
C={1,2,3,4,5,6,7,8}
(A intersectat cu C) U (B intersectat cu C) = {1,2,3,4,5,6} U { 3,4,5,6,7,8} ={1,2,3,4,5,6,7,8}