1.

Let F be the set of all on-to functions from a set A = {a_(1), a_(2), a_(3), a_(4), a_(5), a_(6)} to another set B = {b_(1), b_(2), b_(3), b_(4), b_(5)}. If a function f is selected from F at random, then find the probability that the selected function f is such that f^(-1) (b_(1)) = {a_(1)}

Answer»


ANSWER :`(2)/(15)`


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