 Hi and welcome to the session. I am Asha and I am going to help you with the following question which says, if x is the set containing elements a, b, c, d and y is the set having elements f, b, d, g, find first is x minus y, second is y minus x and third is x intersection y. So first let us learn some key ideas. First is, if we have any two sets a and b, then a minus b is equal to the set of all those elements x such that x belong to a does not belong to b and it is written as the difference of a and b and the second is intersection of a and b is equal to all those x such that x belong to a and x belong to b. So with the help of these two ideas we are going to solve the above problem so this is our key idea. Let us now start with the solution. First we have to find x minus y. Now x is a set of elements a, b, c and d and y is a set having elements f, b, d and g and we have to find x minus y and as we have to find those elements which belong to x but not to y and the elements are a and c. So x minus y is equal to the set numberizing of elements a and c. So this is our answer which completes the first part and now proceeding on to the second part where we have to find y minus x. Now again x is a set having elements a, b, c, d, y is a set having elements f, b, d and g and the elements which belong to y but not to x are f and g. Hence x minus y, sorry this is y minus x is equal to the elements f and g. That is our answer is the difference of y and x is a set having elements f and g. So this completes the second part now proceeding on to the last one where we have to find the intersection of x and y. Now x is a set having elements a, b, c, d, y is a set having elements f, b, d and g. So x intersection y will have all those elements which are common to both the x and y and the common elements are b and d. That is the intersection of x and y is a set having elements b and d. So this is our answer and that completes the third part and ends the session. Hope you enjoyed it. Take care and have a good day.