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Grade: 11
        
Let A={x1,x2,x3,x4,x5,x6},B={y1,y2,y3,y4,y5,y6}.Then the number of one-one mappings from A to B such that f(x) not equal to y i=1,2,3,4,5,6 is
2 years ago

Answers : (3)

Ravi Jhunjhunwala
27 Points
							
n-1 ways...
thats the number of combinations possible... please verify.......as we take 2 elements one arrangement possible, 3 elements 2 arrangements possible
 
one year ago
Ravi
13 Points
							
For 6 terms....its 6 factorial ((1/2!)-(1/3!)+.....
. Thus the answer 265...
Therefore there is 265 ways in which two sets can be mapped
one year ago
Ravi Jhunjhunwala
27 Points
							
both of the above comments are by me only.
one year ago
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