lf A= {3, 5, 7, 9, 11}, B={7, 9, 11, 13 }, C={11, 13, 15} and D={15, 17 }; find
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we know, if two sets A and B are given then, intersection of A and B is the set of all distinct elements that are in both A and B. it is denoted by or . in figure, shaded region indicates .
and A union B is the set of all distinct elements that are in Both A or B. it is denoted by . in 2nd figure, it is clearly shown.
here, A= {3, 5, 7, 9, 11}, B={7, 9, 11, 13 }, C={11, 13, 15} and D={15, 17 }.
A U D = {3, 5, 7, 9, 11} U {15, 17} = {3, 5, 7, 9, 11, 15, 17}
B U C = {7, 9, 11, 13} U {11, 13, 15} = {7, 9, 11, 13, 15}
so, = {3, 5, 7 9, 11, 15} { 7, 9, 11, 13, 15}
= { 7, 9, 11, 15}
[ note : in question , there is little mistake here they should ask by mistake they ask ]
and A union B is the set of all distinct elements that are in Both A or B. it is denoted by . in 2nd figure, it is clearly shown.
here, A= {3, 5, 7, 9, 11}, B={7, 9, 11, 13 }, C={11, 13, 15} and D={15, 17 }.
A U D = {3, 5, 7, 9, 11} U {15, 17} = {3, 5, 7, 9, 11, 15, 17}
B U C = {7, 9, 11, 13} U {11, 13, 15} = {7, 9, 11, 13, 15}
so, = {3, 5, 7 9, 11, 15} { 7, 9, 11, 13, 15}
= { 7, 9, 11, 15}
[ note : in question , there is little mistake here they should ask by mistake they ask ]
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