Let A = {1, 2, 3}. Write all one-one from A to itself.

Asked by Sakshi | 1 year ago |  37

##### Solution :-

Given A = {1, 2, 3}

Number of elements in  A = 3

Number of one-one functions = number of ways of arranging 3 elements = 3! = 6

(i) {(1, 1), (2, 2), (3, 3)}

(ii) {(1, 1), (2, 3), (3, 2)}

(iii) {(1, 2 ), (2, 2), (3, 3 )}

(iv) {(1, 2), (2, 1), (3, 3)}

(v) {(1, 3), (2, 2), (3, 1)}

(vi) {(1, 3), (2, 1), (3,2 )}

Answered by Aaryan | 1 year ago

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