Mathematics · Relations and Functions
If A = {1, 2, 3, 4, 5}, then which of the following relations is NOT a function from A to A?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1{(1, 5), (2, 3), (4, 5), (3, 4), (1, 1)}✓
- 2{(i, i) : i ∈ A}
- 3{(1, 1), (2, 1), (3, 1), (4, 1), (5, 1)}
- 4{(1, 2), (2, 3), (4, 5), (3, 4), (5, 1)}
Correct answer
{(1, 5), (2, 3), (4, 5), (3, 4), (1, 1)}
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