Question

What is an inverse of -i in the multiplicative
group if {1,-1,1,-1) is?
Select one:
a. None of these
b.
c. 1
d. -1​

Answer 1

Answer:

+1

Step-by-step explanation:

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Answer 2

Answer:

I think

a.none of these

as multiplicative inverse is reciprocal of that number

eg

a/b=b/a

1/2=2/1

-1 can be additive inverse of 1