Let R be a relation on N defined by R={(1+x,1+x2):x≤5,x∈N}. Which of the following statements is FALSE?
A
R={(2,2),(3,5),(4,10),(5,17),(6,26)}
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B
Domain of R is {2,3,4,5,6}
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C
Range of R is {2,5,10,17,26}
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D
Range of R−1 is {1,2,3,4,5}
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Solution
The correct option is D Range of R−1 is {1,2,3,4,5} Put x=1,2,3,4,5 Domain of R is {2,3,4,5,6} Range of R is {2,5,10,17,26} R={(2,2),(3,5),(4,10),(5,17),(6,26)} Range of R−1 is {2,3,4,5,6}