- #1

yurkler

- 2

- 0

## Homework Statement

y=x+(1/x) at y=17/4

## Homework Equations

## The Attempt at a Solution

y^-1: x=y+(1/y)

differentiate: 1=y'+ln(y)y'

1=y'(1+ln(y))

y'=1/(1+ln(y))

put that over 1: 1+ln(y)

plug in y: 1+ln(17/4)

=approximately 2.447

Last edited: