If R1 and R2 are binary relations from set A to set B, then the equali – McqOptions

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1.	If R₁ and R₂ are binary relations from set A to set B, then the equality ______ holds.
A.	(R<sup>c</sup>)<sup>c</sup> = R<sup>c</sup>
B.	(A x B)<sup>c</sup> =
C.	(R<sub>1</sub> U R<sub>2</sub>)<sup>c</sup> = R<sub>1</sub><sup>c</sup> R<sub>2</sub><sup>c</sup>
D.	(R<sub>1</sub> U R<sub>2</sub>)<sup>c</sup> = R<sub>1</sub><sup>c</sup> R<sub>2</sub><sup>c</sup>
Answer» D. (R<sub>1</sub> U R<sub>2</sub>)<sup>c</sup> = R<sub>1</sub><sup>c</sup> R<sub>2</sub><sup>c</sup>

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