- #1

kukumaluboy

- 61

- 1

## Homework Statement

## Homework Equations

## The Attempt at a Solution

1)

I found the asymptote as (+/- 1)

2)

Let f(x) = y;

dy/dx = -2x^2 / (x^4 - 2x^2 + 1) = 0

-2x^2 - 0

x = 0;

Since f() != 1, f(2) > 0

**Increasing**

Since f() != -1, f(-2) < 0

**Decreasing**

So i guess range is increasing or x >=2, decreasing for x<=-2

So i guess range is increasing or x >=2, decreasing for x<=-2

3)

Since x = 0, how find local max or min or what the toot is saddle point..