if A={1,2,3) to B={a,b,c,d} for f:A rarr B then find number of (i) mappings (ii) one-one mappings s (ii) many-one mappings (iv) onto mappings (v) into mappings (vi) constant mappings
If A={1,2,3,4} and B={a,b,c} for f:A->B find the total number of (i) mappings(ii) one- one mappings(iii)many-one mappings (iv) onto mappings (v) into mappings (vi) constant mappings
On a map, 1 cm represents 400 m. A distance of 4 cm on the map is
A mapping is select at random from the set of all the mappings of the set A={1,2,...,n} into itself,Find the probability that the mapping selected is an injection.
