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the multiplicative inverse of
? Why or why not? Asked by Sample Last Modified
Answer 
Let rational number a/b of multiplicative inverse is c/d, Then we know
a/b × c/d = 1
Thus ×
= 8/9 × -7/8
= -7/9 is not holds as additive inverse. Because it's not equal to 1.
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Related Questions
Name the property under multiplication used in each of the following:
(i) 
(ii) 
(iii) 
Fill in the blanks.
(i) Zero has __________ reciprocal.
(ii) The numbers __________ and __________ are their own reciprocals
(iii) The reciprocal of − 5 is __________.
(iv) Reciprocal of
, where 
is __________.
(v) The product of two rational numbers is always a __________.
(vi) The reciprocal of a positive rational number is __________.
Write:
(i) The rational number that does not have a reciprocal.
(ii) The rational numbers that are equal to their reciprocals.
(iii) The rational number that is equal to its negative.
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