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The spring 2004 test #3 for ma 125-5b calculus class. The test includes 8 problems covering topics such as finding derivatives, evaluating limits, using newton's method, and graphing functions. Students are required to solve problems without using books, notes, or calculators.
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MA 125-5B, Spring 2004
Name: SSN:
Max. Points: 100 + 5 Bonus Points: Test Grade:
Turn in all the work which you did to solve the problems, not just the final answer. In particular, include intermediate steps in calculations, wherever they are needed. You may write on the back of a page if you need extra space.
No book, no notes, and no calculator are to be used!
(b) f (x) = ln(x +
x)
(c) f (x) =
( (^) sin x
cos x − 1
) 2
(a) lim x→ 0
ex^ − 1 − x x^2
(b) lim x→∞ e−x^ ln x
(c) lim x→ 1
x^2 x + 1
x on the interval 0 ≤ x ≤ 9. (12P)
(b)∗^ Check if the following is possible: A differentiable function f (x) on [0, 1] has the property that f (0) = 1, f (1) = 3 and f ′(x) ≤ 1 for all x in [0, 1]. If this is possible, find such a function. If it is not possible, explain why such a function does not exist. (5P∗)
(a) Find the intervals in which f is increasing/decreasing. (4P) (b) Find all local extreme values of f. (3P) (c) Determine the intervals where f is concave up, concave down. (4P) (d) Find the points of inflection of f. (3P) (e) Sketch the graph of f. (6P)