1 Answered Questions for the topic Pre- Calculus
Pre calculus
04/17/14
I am doing a practice math test and am getting a different answer from what is given on the answer guide. The problem is (xy)^-1 / x^-2 + y^-2
Problem given
(xy)-1
x-2 + y-2
My answer
x2 + y2
xy
There Answer
xy
x2 + y2
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Expert Answers
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