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**Mumbai University > Computer Engineering > Sem 3 > Discrete Structures**

**Marks: 6 Marks**

**Year: December 2015**

Let S={1, 2, 3, 4, 5} and A=S×S. Define the following relation R on A: (a,b) R(c,d) if and only if ad=bc show that R is an equivalence relation and compute A/R.

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