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In questions determine whether the binary relation is:
(1) reflexive, (2) symmetric, (3) antisymmetric, (4) transitive.
-The relation R on Z where aR b means that the units digit of a is equal to the units digit of b.
Q9: <span class="ql-formula" data-value="x x x + x
Q10: Find the number of positive integers
Q33: The set <span class="ql-formula" data-value="\{
Q40: Determine whether E2 and E3 are independent.
Q53: You pick two books at random, one
Q59: The relation R on N where aR
Q71: <span class="ql-formula" data-value="a _ { 1 }
Q80: Using reverse alphabetical ordering, find a spanning
Q87: Is the code given by
Q113: <span class="ql-formula" data-value="\text { Every Hamilton circuit