You are given the polar curve r=cos(θ)+sin(θ) Find the first three points where the tangent line is horizontal

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.4: Plane Curves And Parametric Equations
Problem 64E
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You are given the polar curve r=cos(θ)+sin(θ)

Find the first three points where the tangent line is horizontal

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