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{\bf Math 225 : Quiz\hfill Sept. 19, 1991}

Show your work on a blank sheet of paper with your name and date at the top
(no torn edges).  Circle your final answer. You may use a calculator.

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1. Compute the distance from the point $(1,1,1)$ to the plane $2x - y + 3z = 7$.
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2. Find the points (if any) where the curve described by
 $$\r(t) = (t - \cos(t))\i + 
(1 - \sin(t))\j + \k, \quad 0 \le t \le 2\pi$$
is not smooth.

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