If A – B = A, then (A∩B) = ___.
{ }
A
A∪B
B
The difference of two sets is the set of elements which belong to 1st set but not the second set.
If A – B = A, then A and B are disjoint sets.
(A∩B) = { }
There are no elements common to A and B.
State, Whether the following statements are true of false.
(i) If a<b, then a−c<b−c
(ii) If a>b, then a+c>b+c
(iii) If a<b, then ac>bc
(iv) If a>b, then ac<bc
(v) If a−c>b−d; then a+d>b+c
(vi) If a<b, and c>0, then a−c>b−c where a, b, c and are real numbers and c≠0.