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8. Let L be the set of all straight lines in a plane. land /2 are two lines in the set. R,, R2 and R3 aredefined relations() 4,R2: /, is parallel to2(ü) 4,R2/2 4 is perpendicular to /2(ii) 4,Ral2 intersects 2132Then which of the following is true'?(1) R, R2 and R3 are equivalence(2) R, is equivalence(3) R2 and R3 are reflexive(4) R, R2 and R3 are not symmetric |
| Answer» 8. Let L be the set of all straight lines in a plane. land /2 are two lines in the set. R,, R2 and R3 aredefined relations() 4,R2: /, is parallel to2(ü) 4,R2/2 4 is perpendicular to /2(ii) 4,Ral2 intersects 2132Then which of the following is true'?(1) R, R2 and R3 are equivalence(2) R, is equivalence(3) R2 and R3 are reflexive(4) R, R2 and R3 are not symmetric | |