A park has a length to width ratio of 7:4 and the perimeter of the park is 880 meters. What are the length and width of the park
1 answer:
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Answer with Step-by-step explanation:
Let F be a field .Suppose and
We have to prove that a has unique multiplicative inverse.
Suppose a has two inverses b and c
Then, where 1 =Multiplicative identity
(cancel a on both sides)
Hence, a has unique multiplicative inverse.