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    Hi! I've been struggling with this question for an hour. I have no way of figuring it out.
    The question is: lzl = 1-sin (arg z)
    Now I've made an assumption that sin (arg z) = (y/ square root(x^2 +y^2)), and that the graph should produce a spiral? Can some body help me out?

    Thanks a bunch!
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    (Original post by PimL)
    Hi! I've been struggling with this question for an hour. I have no way of figuring it out.
    The question is: lzl = 1-sin (arg z)
    Now I've made an assumption that sin (arg z) = (y/ square root(x^2 +y^2)), and that the graph should produce a spiral? Can some body help me out?

    Thanks a bunch!
    It won't be a spiral, as the pattern will repeat every 2(pi) radians. This looks as though it should be analogous to r = 1 - sin(@), which I think is a so called "cardioid" (heart shaped) curve aligned with the dimple at the top. A few trial values of @ and a polar sketch should confirm it one way or the other.
 
 
 
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