Find the polar equation for a parabola with its focus at the origin and whose directrix is y = -a (where a > 0). а Or 1+ cose Or 1- sine a Or= 1+ asine a 1- cose

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Topics In Analytic Geometry
Section6.9: Polar Equations Of Conics
Problem 3ECP
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Find the polar equation for a parabola with its focus at the origin and whose directrix is y = -a (where a > 0).
r =
1 + cose
a
Or =
sine
a
1 + asine
a
r =
1- cose
a
1+ sine
Transcribed Image Text:Find the polar equation for a parabola with its focus at the origin and whose directrix is y = -a (where a > 0). r = 1 + cose a Or = sine a 1 + asine a r = 1- cose a 1+ sine
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