if A=(1,2,3) and B- (0,3,5) then what is the number of bijections from A to B - Maths - Relations and Functions

Question

if A=(1,2,3) and B- (0,3,5) then what is the number of bijections
from A to B

Shrutina Agarwal · Accepted Answer

Dear Student,
n(A) = 3
n(B) = 3
No
 of bijections = D33 = 33 - C13(3-1)3 + C23(3-2)3 - C33(3-3)3
 = 27 - 3×8 + 3×1 -0 = 6

Regards,