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UPDATE: At the 15:33 mark of the video, I made an error because the Directrix is in the wrong location! Please see my later video (See Question/Statement 10 of the Quiz) explaining why the Directrix should be located in between the Focus and Center.: https://steemit.com/mathematics/@mes/parametric-equations-and-polar-coordinates-true-false-quiz-and-solutions

Thanks for sharing us a valuable & more eductive post about calculus.
We can learn many things from your every blog.That's why we can increses our knowledge.
Thanks
@resteem & follow done.

Thank you for the science @mes .. this is very useful for me ..

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