1.

Let A={1,2,3...,100} and R be the relation defined as '' is a cube number'' on A. write R as a subset A×A. also, find the domain and range of.

Answer»

A = {1,2,3,.....,100}

R = {(a,b) ∈ A x A | b = a3}

∴ R = {(1,1),(2,8),(3,27),(4,64)}

∴ Domain of R is D = {1,2,3,4} &

Range of R is RR = {1,8,27,64}



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