Switch to rectangular coordinates please! r=5sin(theta)?

r=5sin(theta)

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  • 10 years ago
    Favorite Answer

    y = r*sin(T)

    We know that r = 5*sin(T) which gives sin(T) = r/5

    And r^2 = x^2 + y^2

    y = r^2/5 = (x^2 + y^2)/5

    y^2 - 5*y + x^2 = 0

    y^2 - 5*y + 25/4 - 25/4 + x^2 = 0 .... complete the square for the y terms

    (y - 5/2)^2 + x^2 = 25/4

    This is just a circle centered at (0, 5/2) with a radius or 5/2

  • Anonymous
    10 years ago

    doesn't make sense

    doesn't sound like math

    it's gibberish!

  • Anonymous
    10 years ago

    USE A CALCULATER,THE SMARTTTT ONES

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