00:00Here we have a connection with a and b 2 set and for some set c a intersection c and
00:06b intersection c empty
00:07So then we have a union c is equal to b union c
00:12So a union c is equal to a union c is equal to set a element plus set b element
00:19minus a intersection b
00:23Set a or b main command ane waal element kyunki woha 2 bar count ho gaay
00:28So b union c ka formula b union c is equal to set b ke element yaha pe c ae
00:36ga a b nai c
00:38b ke element plus c ke element minus b intersection c
00:43Now b intersection c b we have a union c empty set a intersection c b empty
00:50Then we have a union c simply remove this side
00:52We have a union c equal to a plus c is equal to b plus c
00:58Then we have a union c is equal to b
01:02Mexican O pointing number second correct answer
01:04Oh
