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student1988

  • 2 years ago

write the equation in rectangular coordinates (x,y) r = cos t

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  1. student1988
    • 2 years ago
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    I know rcos = x so i multiplied r on both sides. |dw:1352851237477:dw| but i dunno how to solve this. can someone help me please?

  2. asnaseer
    • 2 years ago
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    you are almost there - think of how \(r^2\) is related to x and y.

  3. student1988
    • 2 years ago
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    got it. x^2 + y^2, haha :)

  4. asnaseer
    • 2 years ago
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    thats it - well done! :)

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