catgirl17
express x and y in terms of trigonometric ratios of 0.



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Jonask
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\[x=r \cos (\theta)\]
\[y=r \sin (\theta)\]
you mean like that

Jonask
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\[x=28\cos \theta\]

catgirl17
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sorry i labeled it wrong.

catgirl17
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dw:1347223697726:dw

Jonask
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you can substitute in the formular on top

catgirl17
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what do you mean?

Jonask
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what is radius=

Jonask
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oh hypotunese

catgirl17
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28

Jonask
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so \[x=rcos \theta=28\cos \theta\]

catgirl17
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okay

catgirl17
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so what is y?