Question

Which statement is not always true?

1) The sum of two rational numbers is rational.
2) The product of two irrational numbers is rational.
3) The sum of a rational number and an irrational number is irrational.
4) The product of a nonzero rational number and an irrational number is irrational.

Answer 1

its 2

Explanation:

for a fact the product of two rational numbers is rational in that statement is always true