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-z is _________________ for complex number z.
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1/z is _________________ for complex number z.
Which of these is not a type of relation?
An Equivalence relation is always symmetric.
Which of the following relations is symmetric but neither reflexive nor transitive for a set A = {1, 2, 3}.
Which of the following relations is transitive but not reflexive for the set S={3, 4, 6}?
Let R be a relation in the set N given by R={(a,b): a+b=5, b>1}. Which of the following will satisfy the given relation?
Which of the following relations is reflexive but not transitive for the set T = {7, 8, 9}?
Let I be a set of all lines in a XY plane and R be a relation in I defined as R = {(I?, I?):I? is parallel to I?}. What is the type of given relation?
Which of the following relations is symmetric and transitive but not reflexive for the set I = {4, 5}?
(a,a) ? R, for every a ? A. This condition is for which of the following relations?