[" Which of the following statements is not correct "],[" for the relation "R" defined by aRb,if and only if "b],[" lives within one kilometre from a? "]

Which of the following statements is not correct for the R by a Rb if and only if b lives within one kilometer from a (a) R is reflexive (b) R is symmetric (c) R is not anti-symmetric (d) None of the above

Let R be the relation on Z defined by aRb if and only if a -b is an even integer. Find : R.

Let R be the relation on Z defined by aRb if and only if a -b is an even integer. Find : range of R.

Let R be the relation on Z defined by aRb if and only if a -b is an even integer. Find : domain of R.

Let the relation R be defined in N by aRb , if 2a + 3b = 30 . Then R = …… .

Let the relation R be defined in N by aRb, if 2a + 3b = 30. Then R = …… .

(only one enantiomer is taken) Which of the following statement is correct about A and B ?

(only one enantiomer is taken) Which of the following statement is correct about A and B ?

On the set Z of integers, relation R is defined as "a R b hArr a+2b is an integral multiple of 3". Which one of following statements is correct for R? (a) R is only reflexive (b) R is only symmetric (c) R is only transitive (d) R is an equivalence relation