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    Is the radius of curvature only relevant to intrinsic equations, or does one need to memorise an equation for cartesian / parametric forms?
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    They could ask you radius of curvature, giving the equation in parametric, cartesian or intrinsic. So you have to know how to work it out from all forms. But they give you the formulae in the booklet (for each of them), so it shouldn't be a problem.
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    (Original post by lesser weevil)
    Is the radius of curvature only relevant to intrinsic equations, or does one need to memorise an equation for cartesian / parametric forms?
    You should also know the equations for cartesian/parametric forms.
    I attached them, as it is much easier to read when done with mathtype.
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    (Original post by Gaz031)
    You should also know the equations for cartesian/parametric forms.
    I attached them, as it is much easier to read when done with mathtype.
    thanks. yeah I jus looked in the formula notebook and I dunno how they could've escaped me before...
 
 
 
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