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R × R, where R is the set of real numbers, represents
ACoordinates of all points in three-dimensional space
BThe empty set
CAll real numbers
DCoordinates of all points in the two-dimensional plane
Answer & Solution
Correct answer: D. Coordinates of all points in the two-dimensional plane
R × R = {(x, y) : x, y ∈ R} — the Cartesian plane. R × R × R would be 3-D space.
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