Question: 2. Define two relations on R: R1 = {(x, y) : x 2 + y 2 4} R2 = {(x, y) : x = y}

2. Define two relations on R: R1 = {(x, y) : x 2 + y 2 4} R2 = {(x, y) : x = y} Graph R1, R2, R1 R2, and R1 R2 in the Cartesian plane.

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