# computing maths

posted by
**janice123** on
.

Determine whether the relation R on the set of all real numbers is reflexive, symmetric or transitive? where (x,y) is an element of R Explain why and why not by proving and giving examples.

(a) x=1

(b) xy ≥ 0

(c) x-y is a rational number

(d)x+y = 0

I need help urgently!!!! pls reply asap!!! thanks so much!!