susie3706 susie3706
  • 24-05-2023
  • Mathematics
contestada

Consider the sets:
U = {1, 2, {1}, {2}, {1, 2}} A = {1, 2, {1}} B = {{1}, {1, 2}} C = {2, {1}, {2}}
A – B is the set:
a.
{1, 2}
b.
{1, {1, 2}}
c.
{ }
d.
{{1, 2}}
Consider the sets:
U = {1, 2, {1}, {2}, {1, 2}} A = {1, 2, {1}} B = {{1}, {1, 2}} C = {2, {1}, {2}}
B + C is the set:
a.
{{1, 2}}
b.
{{1}, {2}}
c.
{2, {2}, {1, 2}}
d.
{2, {1}, {2}, {1, 2}}

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