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3. cot x dx equals
4. Given f ′ as graphed, which could be a graph of f ?
5. The first woman officially timed in a marathon was Violet Piercey of Great Britainin 1926. Her record of 3:40:22 stood until 1963, mostly because of a lack of womencompetitors. Soon after, times began dropping rapidly, but lately they have been decliningat a much slower rate. Let M(t) be the curve that best represents winning marathon times in year t. Which of the following is (are) negative for t > 1963?
II. M ′(t)
III. M ″(t)
The graph of f is shown above. Let Which of the following is true?
7. The minimum value of on the interval is
Which function could be a particular solution of the differential equation whoseslope field is shown above?
9. Which of the following functions could have the graph sketched below?