22. Write True or False.
1. The rational number that does not have a reciprocal:
2. The rational numbers that is equal to their reciprocal:
3. The rational number that is equal to its negative.
4. The value of 15° is 15.
5. (a+b) = a + b² + 2(a+b)x ab
Answer:
1.false
2.true
3.false
Answer
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