12. The identity element for addition in the set of set of integers is?
A.3 b.2 c.1 d.0
_13. The identity element for multiplication in a set of integers is?
A.1 b.2 c.3 d.4
A.3 b.2 c.1 d.0
_13. The identity element for multiplication in a set of integers is?
A.1 b.2 c.3 d.4
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Answer:
1. D
2.A
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