[[1]] is the additive inverse of 28.

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[[1]] is the additive inverse of $\frac{2}{8}$ .

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Detailed Solution

For the first part of the question, we need to find the additive inverse of

\frac{2}{8}

.
Let the Additive inverse of the given number be x.
From the basic concept, we know the additive inverse of a given number is the number which when added to the given number gives zero.
Hence we can say that

\frac{2}{8}

+x=0
By performing calculations we will have
x= −

\frac{2}{8}

is the additive inverse of the given number.

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