Find the locations of horizontal and vertical tangents. Enter all points in polar form (r,), separated by commas (enter NONE if none exist); give values of such that 0 <0≤, then allo r to be positive or negative accordingly. r=1+6 cos Horizontal tangents: Vertical tangents:

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question
Find the locations of horizontal and vertical tangents. Enter all points in polar form (r, ),
separated by commas (enter NONE if none exist); give values of such that 0 ≤ 0≤, then allow
r to be positive or negative accordingly.
r=1+6 cos
Horizontal tangents:
9-
Vertical tangents:
Transcribed Image Text:Find the locations of horizontal and vertical tangents. Enter all points in polar form (r, ), separated by commas (enter NONE if none exist); give values of such that 0 ≤ 0≤, then allow r to be positive or negative accordingly. r=1+6 cos Horizontal tangents: 9- Vertical tangents:
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