Feedback for Homework Due 2/11

Section 13.2, Problem 24:
Computer the limit lim_{(x,y)->(0,0)} y*ln(x^2+y^2), by converting to pollar coordinates.

We get: r^2=x^2+y^2 and r->0, and y=r*sin(theta), but theta does not go to 0.
There is a difference between r and theta. The one goes to 0, but the other one doesn’t.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s