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animalsavior94

convert the rectangular equation to polar form. assume a is less than 0. x=10

  • 2 years ago
  • 2 years ago

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  1. amistre64
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    (10,0)

    • 2 years ago
  2. amistre64
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    oh, the equation, not the point lol

    • 2 years ago
  3. animalsavior94
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    yeah haha could you please show the work? thank you

    • 2 years ago
  4. amistre64
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    r cos(t) =10 r = 10/cos(t)

    • 2 years ago
  5. animalsavior94
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    where did u get t from?

    • 2 years ago
  6. amistre64
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    well, x = r cos(t) thats just by definition

    • 2 years ago
  7. amistre64
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    so, r cos(t) = 10 is a direct translation to polar form

    • 2 years ago
  8. animalsavior94
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    do you mean theta?

    • 2 years ago
  9. amistre64
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    i dont think I did the divide right tho

    • 2 years ago
  10. amistre64
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    yes; t = theta ... it really doesnt matter what you call it, it never comes when called

    • 2 years ago
  11. animalsavior94
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    ohh ok thanks i was just checking because i was confused. anyways so the answer is r=10/cos theta

    • 2 years ago
  12. amistre64
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    maybe, i cant remember if the divide by 0 applies to mess things up with

    • 2 years ago
  13. animalsavior94
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    im not sure either its quite confusing

    • 2 years ago
  14. amistre64
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    I know to get a straight line; which is what x=10 is; you keep the theta a constant... but id have to read up on it again

    • 2 years ago
  15. animalsavior94
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    i think tthe answer is right because some of my other answers ended with r=///// so it should be right hold on no the answer is r=10 sec theta

    • 2 years ago
  16. animalsavior94
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    how do you get secant?

    • 2 years ago
  17. amistre64
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    r = sec and 1/cos are the same thing

    • 2 years ago
  18. amistre64
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    \[sec = \frac{1}{cos}\]

    • 2 years ago
  19. amistre64
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    \[\frac{10}{cos}=10 sec\]

    • 2 years ago
  20. animalsavior94
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    i see thanks so much for your explanations

    • 2 years ago
  21. amistre64
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    youre welcome :)

    • 2 years ago
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