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.
Answer:
9
Step-by-step explanation:
3/8 x 24 = 9
24 / 8 = 3
3 x 3 = 9
Let's begin by defining the key terminologies:
The degree of a polynomial simply refers to the term with the highest exponent in a polynomial
For example:

The leading coefficient simply refers to the coefficient of the term that has the highest degree in a polynomial
For example: