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Question Exercise
1. Pak Idris has three children, named Faisal, Alu, and Risqi. Pak Sugandar has
two children, named Sunaida and Firman. Pak Adhim has a son named Wafi.
Determine the relationship that occurs and state it in an arrow diagram.
2. Present the “root of” relation from the set P = {1, 2, 3, 4, 5, 6} to the set Q =
{1, 2, 4, 9, 12, 16, 20, 25, 36, 49} in the form of arrow diagrams, Cartesian
diagrams and sets of ordered pairs.
Key Answers Exercise Questions
1. The relationship that occurs is the relationship of "father of"
with the set of fathers is the set of A = {Mr. Idris, Mr.
Sugandar, Mr. Adhim} and the set of children is the set of B =
{Faisal, Alu, Risqi, Sunaida, Firman, Wafi}. The statement in
the form of an arrow diagram is as follows.
2. P = {1, 2, 3, 4, 5, 6}
Q = {1, 2, 4, 9, 12, 16, 20, 25, 36, 49}
Presenting the "root of" relation of the set P and Q in the form of arrow
diagrams, Cartesian diagrams and sets of ordered pairs.
a. Arrow Diagram
