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Q. |
which sets are equal ? 1.{r,s,t} 2.{s,s,t,r} 3.{t,r,t,s} |
A. | 1 and 2 |
B. | 2 and 3 |
C. | 1 and 3 |
D. | all are equal |
Answer» D. all are equal |
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