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Earn +20 ptsQ: Is the rational number -1 equal to its reciprocal?
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What is the rational number that is equal to its reciprocal?
1
Is there a number that is equal to its reciprocal?
1 is a number that is equal to its reciprocal, 1. Just for future references, a reciprocal is sort of like the inverse of a number. 10 is 10/1 so the reciprocal would be 1/10. 1 is 1/1 so the reciprocal is 1.
The number which is equal to its reciprocal?
1 or -1
What does x times its reciprocal equal?
Any number multiplied by its reciprocal is equal to ' 1 '.
What types of numbers can you multiply together to get a rational number?
You can multiply any pair of rational numbers as well as any irrational number and its reciprocal (or a rational multiple of its reciprocal. Thus pi * 3/7*(1/pi) is rational.
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