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[" 16.If "A={1,2,3}" and "B={a,b}" ,then...

[" 16.If "A={1,2,3}" and "B={a,b}" ,then write the total number of functions from A to B."],[" 17.Write total number of one-one functions from set "A={1,2,3,4}" to set "B={a,b,c}],[" 18.If the function "f:{1,3,4}rarr{2,5,1}" and "g:{2,5,1}rarr{1,3,4}" are given by "f={(1,2)]

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