Que: If R₁ and R₂ are binary relations from set A to set B, then the equality ______ holds. a. (Rᶜ)ᶜ= Rᶜ b. (A x B)ᶜ = Φ c. (R₁ U R₂)ᶜ = R₁ᶜ∪ R₂ᶜ d. (R₁ U R₂)ᶜ = R₁ᶜ ∩ R₂ᶜ Answer: (R₁ U R₂)ᶜ = R₁ᶜ∪ R₂ᶜ