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1. |
If A = {2, 4, 5}, B = {7, 8, 9}, then n \[\left( A\text{ }\times \text{ }B \right)\] is equal to |
A. | 6 |
B. | 9 |
C. | 3 |
D. | 0 |
E. | None of these |
Answer» C. 3 | |