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Q2: Let S = {1,2,5,6 }

Define a relation R on S of at least four order pairs, as (a,b) R iff a*b is even (i.e. a multiply by b is even)

Q3: Let S = {x, y, z } and R is a relation defined on S such that

R={(y,y),(x,z),(z,x),(x,x),(z,z),(x,y),(y,x)}

Show that R is refl

need proper solution