Definite Integrals
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Questions and Answers

If ∫[a, b] f(x) dx = φ(b) - φ(a), what is the relationship between φ(x) and f(x)?

  • φ(x) is the anti-derivative of f(x) (correct)
  • φ(x) is the integral of f(x)
  • φ(x) is the derivative of f(x)
  • φ(x) is the inverse of f(x)
  • What is the purpose of the constant of integration when evaluating a definite integral?

  • It is used to find the lower limit of integration
  • It is added to the result of the definite integral
  • It is not used in the evaluation of a definite integral (correct)
  • It is used to find the upper limit of integration
  • If ∫f(x) dx = φ(x) + C, what is the value of C when evaluating a definite integral?

  • It is equal to 0
  • It can be any value
  • It is not involved in the evaluation of a definite integral (correct)
  • It is equal to 1
  • What is the name of the formula ∫[a, b] f(x) dx = φ(b) - φ(a)?

    <p>Newton-Leibniz Formula</p> Signup and view all the answers

    What is the interval [a, b] referred to as?

    <p>Interval of Integration</p> Signup and view all the answers

    If f(x) is continuous and u(x), v(x) are differentiable functions in the interval [a, b], then what is the value of the integral ∫[v(x)f'(t) - u(x)f'(t)]dt?

    <p>f(v(x)) - f(u(x))</p> Signup and view all the answers

    Let f(x) = ∫[x^2 - t^2]dt from 0 to x. What is the value of f'(x)?

    <p>2 - x^2</p> Signup and view all the answers

    If f(x) is continuous and differentiable in the interval [a, b], and ∫f(t)dt from a to b equals x^2, then what is the value of f'(x)?

    <p>2x</p> Signup and view all the answers

    Let f(x) = ∫[x^2 - t^2]dt from 0 to x. What is the value of x such that f'(x) = 0?

    <p>±1</p> Signup and view all the answers

    Let f(x) = ∫[f(t)dt] from 0 to x, and f(x) = x(1 + x). What is the value of f(4)?

    <p>16</p> Signup and view all the answers

    If f(x) is a continuous function on [a, b] and f1(x) and f2(x) are two continuous functions on [a, b] such that ∫[a, b] f1(x)dx ≤ ∫[a, b] f(x)dx ≤ ∫[a, b] f2(x)dx, then which of the following is true?

    <p>U ∫[a, b] f1(x)dx ≤ U ∫[a, b] f(x)dx ≤ U ∫[a, b] f2(x)dx</p> Signup and view all the answers

    If ∫[a, b] f(x)dx = lim (h → 0) Σf(a + rh), where h = (b - a)/n, then what is the value of n?

    <p>n = (b - a)/h</p> Signup and view all the answers

    If S_n = 1 + 1/(1 + 1/n) + 1/(2 + 2/n) + ... , then what is the value of lim (n → ∞) S_n?

    <p>2 log 2</p> Signup and view all the answers

    If A = lim (n → ∞) [(n!)(1/n)], then what is the value of log A?

    <p>e - 1</p> Signup and view all the answers

    If ∫[0, 1] f(x)dx = lim (n → ∞) Σf(1/n), then what is the function f(x)?

    <p>1/(1 + x)</p> Signup and view all the answers

    What is the value of the definite integral ∫[a, b] f(x)dx in terms of the primitive or anti-derivative φ(x)?

    <p>φ(b) - φ(a)</p> Signup and view all the answers

    Why is the constant of integration not needed when evaluating a definite integral?

    <p>Because the constant cancels out when evaluating the definite integral</p> Signup and view all the answers

    What is the property of a definite integral that allows it to have a unique value?

    <p>Uniqueness</p> Signup and view all the answers

    What is the name of the formula that states ∫[a, b] f(x)dx = φ(b) - φ(a)?

    <p>Newton-Leibnitz Formula</p> Signup and view all the answers

    What is the purpose of the limits of integration in a definite integral?

    <p>To specify the interval over which the function is integrated</p> Signup and view all the answers

    What is the condition required for a function f(x) to be integrable on [a, b]?

    <p>f(x) is continuous on [a, b]</p> Signup and view all the answers

    If ∫[a, b] f(x) dx = U, then what is the value of ∫[b, a] f(x) dx?

    <p>-U</p> Signup and view all the answers

    What is the purpose of integration by parts in calculus?

    <p>To find the integral of a product of functions</p> Signup and view all the answers

    If f(x) is continuous on [a, b], then what is the value of ∫[a, b] f'(x) dx?

    <p>f(b) - f(a)</p> Signup and view all the answers

    What is the value of lim (n → ∞) [(n!)(1/n)]?

    <p>e</p> Signup and view all the answers

    If f(x) is a continuous and differentiable function on [a, b] and v(x) and u(x) are differentiable functions on [a, b], then what is the value of the integral ∫[v(x)f'(t) + u(x)f'(t)]dt?

    <p>v(x)f(x) - u(x)f(x) + C</p> Signup and view all the answers

    Let f(x) = ∫[x^2 - t^2]dt from 0 to x. What is the value of f'(x)?

    <p>2x^2</p> Signup and view all the answers

    If ∫[a, b] f(x)dx = φ(b) - φ(a), what is the relationship between φ(x) and f(x)?

    <p>φ(x) is the antiderivative of f(x)</p> Signup and view all the answers

    Let f(x) = ∫[f(t)dt] from 0 to x, and f(x) = x(1 + x). What is the value of f(4)?

    <p>16</p> Signup and view all the answers

    What is the purpose of the constant of integration when evaluating a definite integral?

    <p>To account for the arbitrary constant in the antiderivative</p> Signup and view all the answers

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