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1994

  • 3 years ago

How do you write r=2sintheta and r=2sin2theta into polar coordinates?

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  1. cantorset
    • 3 years ago
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    it is polar coordinates

  2. cantorset
    • 3 years ago
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    r = 2 sin theta, theta is theta

  3. cantorset
    • 3 years ago
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    maybe you mean cartesian coordinates?

  4. 1994
    • 3 years ago
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    it says solve the system of equations on the polar plane: then it has those two equations. And says Write your solutions as polar coordinates [hint there are 4]

  5. cantorset
    • 3 years ago
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    oh

  6. 1994
    • 3 years ago
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    yeah ha. Do you know anyone who could help?

  7. cantorset
    • 3 years ago
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    yes me, give me medal

  8. 1994
    • 3 years ago
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    I don't know how to?

  9. cantorset
    • 3 years ago
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    i just gave you medal

  10. 1994
    • 3 years ago
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    but how

  11. cantorset
    • 3 years ago
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    i took it away your medal

  12. cantorset
    • 3 years ago
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    solve 2 sin t = 2 sin (2t)

  13. chaguanas
    • 3 years ago
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    Ah, it's already in polar coordinates. (r, theta)

  14. cantorset
    • 3 years ago
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    assume that r1 = r2 , where r1 = 2 sin t , and r2 = 2 sin (2t)

  15. cantorset
    • 3 years ago
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    2 sin t = 2 ( 2 sin t cos t )

  16. 1994
    • 3 years ago
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    woah slow down haha

  17. cantorset
    • 3 years ago
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    2sin t - 4sint*cost = 0

  18. cantorset
    • 3 years ago
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    more medals

  19. cantorset
    • 3 years ago
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    2sin t ( 1 - 2 cos t ) = 0

  20. 1994
    • 3 years ago
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    how is that four solutions

  21. cantorset
    • 3 years ago
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    solve

  22. cantorset
    • 3 years ago
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    solve

  23. 1994
    • 3 years ago
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    solve what?

  24. cantorset
    • 3 years ago
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    2sin t = 0 or 1- cos t = 0

  25. prettychicka45
    • 3 years ago
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    helppppp

  26. cantorset
    • 3 years ago
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    sin t = 0 when t = 0, pi ,

  27. cantorset
    • 3 years ago
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    1- 2 cos t = 0 when cos t = 1/2 , when t = pi/3, 5pi/3

  28. cantorset
    • 3 years ago
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    so the solutions are t = { 0, pi, pi/3, 5pi/3}

  29. 1994
    • 3 years ago
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    how do i show the work? what do I write for the equations and what answer goes with which one

  30. 1994
    • 3 years ago
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    Did you use the right equations? 2sint and 2sin2t

  31. 1994
    • 3 years ago
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    never mind i got it. thanks (:

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