Question
Give an example of a relation which is,
Symmetric and transitive but not reflexive.
Symmetric and transitive but not reflexive.
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| $\text{X}=\text{x}_\text{i}:$ | $1$ | $2$ | $3$ |
| $\text{P}(\text{X}=\text{x}_\text{i}):$ | $\frac{1}{4}$ | $\frac{1}{8}$ | $\frac{5}{8}$ |
$\vec{\text{a}}=\hat {\text{i}}-\hat{\text{j}}$ and $\vec{\text{b}} = \hat{\text{j}}+\hat{\text{k}}$