- Corrections will be due this thursday afternoon(March 3). If I'm not around slip it under my door. It will be considered "on time" if its under my door when I arrive on Friday morning.
- Each question was worth 12 points. You can earn up to half of the points you missed for each question.
- I don't want your test book back, but make sure to write how many points you earned for each problem on the sheet you turn in.
- If you didn't keep the exam, you can find it in the download page of this blog.
- The bonus question will become a bonus question in first written homework assignment.
Now for a hint on number three of the written homework. Recall, this problem involves calculating the curvature of a curve with parametric equations:
~d\theta} "x=\int_{0}^{t}{\sin (\frac{\pi}{2}\theta)~d\theta}")
, and ~d\theta} "y=\int_{0}^{t}{\cos (\frac{\pi}{2}\theta)~d\theta}")
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First of all I would write r(t)=x(t)i+y(t)j, and then choose one of the curvature equations to work with. It will be important to use the fundamental theorem of calculus:
du=f(x) "\frac{d}{dx}\int_{a}^{x}f(u)du=f(x)")
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First of all I would write r(t)=x(t)i+y(t)j, and then choose one of the curvature equations to work with. It will be important to use the fundamental theorem of calculus:
If anyone has a hint for other questions from the written homework, feel free to post them below.
ReplyDeleteDumb Question:
ReplyDelete7 Question x 12 pts each = 84
Was the test out of 84 or am I missing something?
Each part of question 5 was 12 points.
ReplyDelete