NCERT Example 8 - Relations and Functions
Question: For P={5,6,7} and Q={3,4,5}, Fig. 2.7 maps 5 to 3, 6 to 4, and 7 to 5. Write the relation in roster and set-builder form; find its domain and range.
Answer: R={(5,3),(6,4),(7,5)} = {(x,y) in P x Q : x-y=2}; domain={5,6,7}; range={3,4,5}.
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