Question

simplify
x-y^-1/x^-1-y

Answer 1

@zepdrix

Answer 2

i thought we did this already?

Answer 3

yeah!

Answer 4

I think that it

Answer 5

\[\frac{x-\frac{1}{y}}{\frac{1}{x}-y}=\frac{\frac{xy-1}{y}}{\frac{1-xy}{x}}=\frac{-(1-xy)}{y}*\frac{x}{1-xy}=- \frac{x}{y}\]

Answer 6

if you don't understand something let me know.

Answer 7

that's what i understand. there was too many people jumpingon giving me to many different ways

Answer 8

and it didn't look right

Answer 9

Check my image I did the same thing!

Answer 10

where is yours @AkashdeepDeb

Answer 11

http://www.wolframalpha.com/input/?i=simplify+%28x-y^%28-1%29%29%2F%28x^%28-1%29-y%29

Answer 12

trust mine....I showed you the steps, if you understand them, then u know that mine is correct

Answer 13

if you dont, let me know. but others are just posting answers, with no work...you should not trust it...

Answer 14

http://www.myalgebra.com/algebra_solver.aspx

Answer 15

yeah you have what i have

Answer 16

so i'll trust yours

Answer 17

trust wolframalpha:)

Answer 18

remember the note for the domain, they are only equal if x is not equal to 0, because the original function was not defined for x = 0, but the new function is defined for x = 0,

Answer 19

we cant force the first function to be defined for x=0, but we can the second ...so if we want equality we make that note:)

Answer 20

okay