Question

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Write the multiplicative and additive Inverse.
a) -1 upon 8
b) 1 upon 5
c) 5 upon -21
d) 5 upon 2​​

Answer 1

Answer:

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Answer 2

Answer:

For a number a, it's multiplicative inverse b is such that a⋅b=1 which is the multiplicative identity.

For a number a, it's additive inverse c would be such that a+c=0 where 0 is additive identity.

Thus, for a=−58

It's additive inverse be c.

Then −58+c=0

Now, adding 58 to both sides,

c=58.

Let the multiplicative inverse be b.

Then a⋅b=1

⇒−58⋅b=1

Multiplying both sides with −85

b=−85