Conics Help (1 Viewer)

Jonomyster

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Not sure what you meant by sec(phi), but here's what I got anway:
Part (a) https://i.imgur.com/O2Ae7sY.png
Part (b) https://i.imgur.com/0tKKBM9.png
 

Andy005

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I already calculated the coordinates of Q from tan(theta/2)tan(phi/2) = 1-e/1+e, but i don't know how to calculate the coordinates of Q from tan(theta/2)tan(phi/2) = 1+e/1-e.
 

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