Answer:
See Explanation
Step-by-step explanation:
The question is not properly formatted.
<em>Assume that the given parameter is: 4</em>
Required
The multiplicative inverse
Let a number be x, and the multiplicative inverse be y. The relationship between them is:

Make y the subject

So;; for the assumed given parameter.
The multiplicative inverse is:

Can it be a decimal? Only one I can think of is 1 X 31
10/7 which equals 1 and 3/7
Answer:
Undefined
Step-by-step explanation:
Same x coordinates with different y values is considered undefined
The complete question in the attached figure
we know that
in the triangle BDC
cos alfa=3/y----------> equation 1
sin alfa=x/y----------> equation 2
in the triangle ABD
cos alfa=4/5--------> equation 3
sin alfa=3/5---------> equation 4
then
Equal equation 1 and 3
3/y=4/5---------> y/3=5/4----------> y=15/4
Equal equation 2 and 4
x/y=3/5-------> x=3*y/5------------> 3*15/(4*5)-----> x=9/4
the answer is
<span>x=9/4 y=15/4</span>