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November 08, 2025, 10:08:14 am
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Author Topic: cartesian equation?  (Read 837 times)  Share 

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Halil

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cartesian equation?
« on: November 10, 2011, 08:46:46 pm »
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orite i had a function like sin(t)i+cos(2t)j and it asked for the cartesian equation

dont you make sin(t)=x and cos(2t)=y, then make t subject in term of x and sub that into the cos(2t)=y?

am i right or wrong?
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tony3272

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Re: cartesian equation?
« Reply #1 on: November 10, 2011, 08:50:16 pm »
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I'm not sure if that works but using your double angle formula:

and since We just go:
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Halil

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Re: cartesian equation?
« Reply #2 on: November 10, 2011, 08:52:05 pm »
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ohhhhhhh, thanks for enlightening my mind about that mate,
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