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Calculus: Mean Value Theorem (Rolles, Lagrange & Cauchy) Video Lecture | Engineering Mathematics - Civil Engineering (CE)

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FAQs on Calculus: Mean Value Theorem (Rolles, Lagrange & Cauchy) Video Lecture - Engineering Mathematics - Civil Engineering (CE)

1. What is the Mean Value Theorem in calculus?
Ans. The Mean Value Theorem states that if a function is continuous on a closed interval [a, b] and differentiable on the open interval (a, b), then there exists at least one point c in (a, b) where the derivative of the function is equal to the average rate of change of the function over [a, b].
2. What is the significance of the Mean Value Theorem in calculus?
Ans. The Mean Value Theorem is significant in calculus as it provides a fundamental result that guarantees the existence of a point where the instantaneous rate of change of a function equals its average rate of change over a given interval. It serves as a cornerstone for many other theorems and techniques in calculus.
3. How is the Mean Value Theorem related to Rolle's Theorem?
Ans. The Mean Value Theorem is an extension of Rolle's Theorem. Rolle's Theorem states that if a function is continuous on a closed interval [a, b], differentiable on the open interval (a, b), and the function values at the endpoints are equal, then there exists at least one point c in (a, b) where the derivative of the function is zero. The Mean Value Theorem is a generalized version of Rolle's Theorem, where the condition of equal function values at the endpoints is relaxed.
4. How is the Mean Value Theorem related to Lagrange's Mean Value Theorem?
Ans. Lagrange's Mean Value Theorem is a specific case of the Mean Value Theorem. It states that if a function is continuous on a closed interval [a, b] and differentiable on the open interval (a, b), then there exists at least one point c in (a, b) where the derivative of the function is equal to the slope of the secant line connecting the endpoints of the interval. The Mean Value Theorem is a more general statement that encompasses Lagrange's Mean Value Theorem.
5. What is Cauchy's Mean Value Theorem in calculus?
Ans. Cauchy's Mean Value Theorem is a variation of the Mean Value Theorem that applies to the ratio of two functions. It states that if two functions, f(x) and g(x), are continuous on a closed interval [a, b] and differentiable on the open interval (a, b), and g(x) ≠ 0 for all x in (a, b), then there exists at least one point c in (a, b) where the derivative of f(x) divided by the derivative of g(x) is equal to the ratio of their values at c. Cauchy's Mean Value Theorem provides a way to relate the derivatives of two functions.
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