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    1. Forum
    2. AP Calculus Forum
    3. Some questions before the test
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    Jeremus von Stroheim
    Jan 16, 2019

    Some questions before the test

    1. Are differentials on the test? I have no clue what they are.


    2. Do we get the newton's method equation? I don't feel like memorizing it.


    3. What prevents Newton's method from happening?


    4. What prevents a linearization from happening, such as what this question is asking?


    2 comments
    0
    Mr. Gesjorskyj
    Jan 16, 2019

    1) No. Thanks for paying attention.

    2) No. Stop whining.

    3) Laziness, usually. Other than that, there could be continuity or differentiability issues. Furthermore, if the derivative at one of the x-values works out to 0, you have a problem with the tangent intersecting the x-axis (and an issue with division by 0 in the formula). There's also the "infinite loop" problem, shown in Figure 1 below:


    Figure 1 shows a graph that was discussed in class while Jeremus was not paying attention.

    4) Continuity or differentiability issues, including cusps, corners, asymptotes, holes, vertical tangents, blah, blah, blah. If there's an issue with finding the tangent slope somewhere, there's an issue with finding the linearization there too (which is really just the tangent line's equation).

    Jeremus von Stroheim
    Jan 16, 2019

    Thanks for the help G-dawg

    0