# Horizontal and Vertical Tangent Lines to Polar Curves

## 23 thoughts on “Horizontal and Vertical Tangent Lines to Polar Curves”

1. david ocampo says:

buena explicación saludos desde Colombia

2. valsera246 says:

Thank you!

3. akcire6 says:

Thank you for a superb explanation. Your videos need more exposure. I always tell other students to look for your videos. I am grateful to individuals like yourself who take the time to help others struggling with the concepts in math.

4. Eric Harris says:

Your demonstrations are very much appreciated.

5. Mathispower4u says:

@maximus5415 I'm getting an error trying to explain why it is correct. I'll send you a message.

6. Th3Sh1n1gam1 says:

love you, lol.

hi

8. jesuskb says:

great videos

9. Leon Chen says:

thx

10. Juan Sanchez says:

thank you

11. Alena Schwartsman says:

Shouldn't there be a vertical tangent since point (0,pi/2) is undefined?

12. Crystal Chrome says:

I missed some notes for some reason in class and I couldn't figure out on my own why the (0, pi/2) points weren't included in the answer. This video made everything clear, and now I know to check the points on my test. It was such an easy solution to my puzzlement! Thank you.

13. JR Junior Juniors jr. says:

This is a bitchload amount of work for one problem

14. Robert Lombardo says:

very helpful. better than my textbook's video explanations

15. Fernando Galvao says:

Thank you, it helped a lot 😉

16. Hobo G says:

+Mathispower4u !! Why can we write a vertical tangent on the sharp point 10:31?? You just said we couldn't draw the tangent there 5:43! My Webassign agrees with you!

17. Mark Salazar says:

Very helpful video. However my textbook says that when you get the same point for both horizontal and tangent line (like the (0,pi/2) in this problem), you have to take the limit of the derivative using L'Hopital's rule. I also wonder if you can skip that and just see if the sharp point is facing left or right and conclude that the tangent is horizontal or if the sharp point is facing up or down the tangent is vertical.

18. Time Passes says:

THANK YOUUUUUU

19. 許潤璋 says:

20. Jillian Weber says:

Thank you!