Relations and Functions

Relations and Functions

Question

 Let X {David, Gokul, Ram} be the set of students of class XI who are in the school hockey team. Let Y = {Shyam, David, Geet} be the set of students of class XI who are in the school football team.

(a) Find X ∪; Y and interpret the set.

(b) Find X ∩ Y and interpret the set.

Answer
space space left parenthesis straight a right parenthesis space straight X space union space straight Y space = {David, Gokul, Ram, Shyam, Geet}
rightwards double arrow David, Gokul, Ram, Shyam and Geet are members of either hockey team or football team or both teams of students of class XI.
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#6 {main}</pre>\
rightwards double arrow space David is the only student from sets X and Y who plays both games.

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