Mathematics · Relations and Functions
Let A = {-3, -2, -1, 0, 1, 2, 3} and B = {0, 1, 4, 9}. How many elements does the subset of A × B corresponding to the relation R = {(x, y) : |x| < y, where x ∈ A and y ∈ B} have?
- 116
- 215
- 312✓
- 49
Correct answer
12
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