00:01
These are the given set.
00:02
Set a equal to a, b.
00:03
Set b equal to 1, 2 and set c equal to 2, 3.
00:07
In first question, we need to find out a multiplied by b union c.
00:12
So, b union c equal to 1, 2 avoiding duplicate and 3.
00:19
Now, a multiplied by b union c is equal to ab into 1, 2, 3.
00:29
So, this is equal to a1, then a2, then a3.
00:39
Next is b1, b2 and b3.
00:45
Next question, we need to find out a cross b union of a cross c.
00:53
So, for that, let us first find out a cross b.
01:03
Therefore, a cross b equal to ab into 1, 2 that is a1, a2, b1 and b2.
01:23
Now, a cross c is equal to again a, b into 2, 3 that is a2, then a3, then b2 and b into 3.
01:44
Now, we need to find out the union of these two sets.
01:46
Therefore, from 1 and 2, the union of this set that is a cross b union of a cross c is equal to a1, then a2.
02:05
A2 is duplicate.
02:06
So, we will write once, then a3...