SOLUTION: whats the multiplicative inverse of {{{(x^2+y^2)/(x-y)}}}

Question 185954: whats the multiplicative inverse of
Answer by Edwin McCravy(20060) (Show Source): You can put this solution on YOUR website!
whats the multiplicative inverse of
That asks the question:
What do you have to multiply by to get 1?
Answer: You have to multiply it by the reciprocal of itself
in order to get 1. So the answer is its reciprocal, namely,

To show why that's the answer, we multiply the original by it

Then we cancel:

and that just gives
Edwin
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