Hey everyone, quick question:

My workings:Approximate ln(0.6) by using the MacLaurin series expansion for ln(1-x), with an error guaranteed to be less than 0.01. Show your error estimate.

However, my calculator gives me -0.510826.Since we want ln(0.6), but make use of the series expansion for ln(1-x), x = 0.4

Let be the error estimate.

So therefore

Where did I go wrong?