A) 0 is called the additive identity for rational numbers.
B) 1 is called the multiplicative identity for rational numbers.
C) The additive inverse of 0 is zero itself.
D) All the above.
Correct Answer: D
Solution :
All the given statements are correct. Consider \[\frac{4}{5}\] [a] Since\[\frac{4}{5}+0=\frac{4}{5},\], 1 is the additive identity of rational numbers. [b] Since \[\frac{4}{5}\times 1=\frac{4}{5}\], is the multiplicative identity of rational numbers. [c] Since \[0+0=0,\]0 is the additive inverse of 0.
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