1. The product of any number and one is that number. For example a x 1 = a. The additive inverse of a number, a is -a so that a + -a = 0. The multiplicative inverse of a number, a is so that a x = 1.

2. The multiplicative inverse of a number, a is so that a x = 1. Adding 0 to any number leaves it unchanged. For example a + 0 = a. Multiplying any number by 0 yields 0.

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Answer:Step-by-step explanation: