give a counterexample for each of the two
directions of:
The product xy of a rational number x and a real number y is irrational if
and only if y is irrational.
cant figure out the first direction
give a counterexample for each of the two
directions of:
The product xy of a rational number x and a real number y is irrational if
and only if y is irrational.
cant figure out the first direction