A naturalist randomly selects three leaves from this set, without replacement. Determine the following probabilities. (a) Exactly one has undergone both types of transformations. (b) At least one has undergone both transformations. (c) Exactly one has undergone one but not both transformations. (d) At least one has undergone at least one transformation.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?