Teaching DSSSB TGT Mock Test 2025 Mathematics Relations and Functions Operations on Relations

Let A = {1, 2, 3, 4, 5} and B = {1, 2, 3, 4}. Then the number of elements in the relation R = {(a, b): A × A: 3(a - b)2 +2(a - b) ∈ B} is 

1
3
2
2
3
4
4
5
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