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A = {Regular Polygons}, B = {Triangles} and C = {Quadrilaterals}. Find i) A ∩ B ii) A ∩ C iii) A – B iv) A – C |
Answer» A = {Triangles, Quadrilaterals, Pentagon, Hexagon, Heptagon} B = {Triangles}; C = {Quadrilaterals} i) A ∩ B = {Triangles, Quadrilaterals, Pentagon, Hexagon, Heptagon} ∩ {Triangles} = {Triangles} ii) A ∩ C = {Triangles, Quadrilaterals, Pentagon, Hexagon, Heptagon} ∩ {Quadrilaterals} = {Quadrilaterals} iii) A-B = {Triangles, Quadrilaterals, Pentagon, Hexagon, Heptagon} – {Triangles} = {Quadrilaterals, Pentagon, Hexagon, Heptagon} iv) A – C = {Triangles, Quadrilaterals, Pentagon; Hexagon, Heptagon} – {Quadrilaterals} = {Triangles, Pentagon, Hexagon, Heptagon} |
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