Mathematics

Macho

15 March, 08:50

True or False for each statement.

1. For a real number a, a + 0 = a.

2. For a real number a, a + (-a) = 1.

3. For a real numbers a and b, | a - b | = | b - a |.

4. For real numbers a, b, and c, a + (b ∙ c) = (a + b) (a + c).

5. For rational numbers a and b, is always a rational number.

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