Mathematics
Mathematics, 23.08.2019 11:10, hjamileth77

Which statement is not always true?
(1) the product of two irrational numbers is irrational.
(2) the product of two rational numbers is rational.
(3) the sum of two rational numbers is rational.
(4) the sum of a rational number and an irrational number is
irrational.

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Which statement is not always true?
(1) the product of two irrational numbers is irrational.<...

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