9 9
9 9
Here
4 - 0
0 - 4
11
9
9
EXERCISE 1.1
1. Write the additive inverse of each of the following:
7
-6
(b)
(a)
(c)
5
11
erty used in the following:
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Answer:
-7
6
-5
-11
this is the answer
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