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    Assignments

    The page references to exercises refer to the textbook by T. Apostol, Calculus, Vol. I, Second Edition (1967).

    PROBLEM SET # PROBLEMS SOLUTIONS
    1

    Due in Ses #5

    1. Prove Thms I.6 and I.11 on p. 18
    2. Do exercises 5 and 6 on p. 36
    3. Prove by induction: (a+b)^n = \sum_{k=0}^n C_n^k a^k b^(n-k), where C_n^k = (n!)/{(k!)(n-k)!}
    		 Solution Set 1 (PDF)
    2

    Due in Ses #8

    1. Do Ex. 6, p. 28
    2. Do Ex. 7, p. 64
    3. Prove that the integral in Ex. 11, pp. 71 is independent of the partition, and do parts a, b, c of the exercise.
    		 Solution Set 2 (PDF)
    3

    Due in Ses #11

    1. Ex. 22b, p. 83
    2. Ex. 16, p. 94
    3. Ex. 10, p. 114
    		 Solution Set 3 (PDF)
    4

    Due in Ses #17

    1. Ex. 6, p. 155
    2. Ex. 5, p. 149
    3. Let f(x) be defined for all nonnegative x, and suppose that it is continuous, strictly increasing and bounded on its domain. Let M be the supremum of the values of f(x), x nonnegative.
      (a) Show that f(x) takes on every value between f(0) and M, but does not take on the value M
      (b) Show that f(x) is uniformly continuous for all nonnegative x.
    		 Solution Set 4 (PDF)
    5

    Due in Ses #19

    1. Derive the formula for the derivative of f(x)=x^{1/3} (third power root of x), for nonnegative x, directly from the definition.
    2. Differentiate f(x) = ((tan^2(x) -1)(tan^4(x) +10tan^2(x) +1))/(3 tan^3(x)), assuming 0< x < 90 degrees.
    3. Sketch the graph of f(x)=(x^4 - 3)/x. Find critical points, zeros, asymptotes, intervals of monotonicity, convexity, and points of inflection.
    		 Solution Set 5 (PDF)
    6

    Due in Ses #22

    1. Ex. 17 on p. 208
    2. Show that for any nonzero number k and any numbers a and b, there is at most one function f(x) defined for all real numbers and satisfying the conditions:
      (a) f''(x) = -k^2 f(x) for all x
      (b) f(0) =a, f'(0)=b
      (Hint: If there are two such functions f(x) and g(x), consider u(x) = f(x/k) - g(x/k) and v(x) = u'(x), and show that u(x)=0, v(x)=0). Guess the unique function that satisfies the conditions.
    3. Ex. 18, 19 on p. 216
    		 Solution Set 6 (PDF)
    7

    Due in Ses #25

    1. Ex. 30, p. 224 - derive the formula
    2. Ex. 27 and 30, p. 249
    3. Ex. 40 on p. 258 (suggestion: trig. substitution and by parts) and find the primitive of f(x) = 1/(x sqrt(x^2 +3)) (suggestion: trig. substitution).
    		 Solution Set 7 (PDF)
    8

    Due in Ses #28

    Problem Set 8 (PDF)

    		 Solution Set 8 (PDF)
    9

    Due in Ses #34

    1. Ex. 15, p. 399
    2. Ex. 3, 12 on p. 402
    3. Ex. 11, 22 on p. 409
    		 Solution Set 9 (PDF)
    10

    Due in Ses #38

    1. (a) Between the curves y=1/x^3 and y=1/x^2 and to the right of x=1 are constructed infinitely many segments parallel to the y-axis at an equal distance from each other. Will the sum of the lengths of these segments be finite?
      (b) The same question as in (a) with the curve y= 1/x^2 replaced by the curve y= 1/x.
    2. Ex. 8, 9 on p. 415
    3. Ex. 14 on p. 420
    4. Ex. 12 on p. 430
    5. Ex. 5 on p. 438
    		 Solution Set 10 (PDF)