Question

(x-1,y+1)=(0,0) then (x,y) is​

Answer 1

Answer:

(x-1,y+1)=(0,0)

So, (x-1) = 0 and (y + 1) = 0

x = 1 and y = -1

(x,y) = (1, -1) Ans

Hope This helps ☺️

Answer 2

Answer:

What a nice little question. The answer is 1. Here is one way to get this:

First, note that 1/x + 1/y is equivalent to (x + y) / xy. We will need this.

Second, use the fact that the slope of the line joining any two of the three points is the same regardless of which two are chosen. So, equated these (I leave details to you, dear reader) and you will get, after simplification, that x + y = xy.

But then 1/x + 1/y = (x + y) / xy = 1 (since numerator equals denominator).

Step-by-step explanation:

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