Podcast
Questions and Answers
What is the name of the faculty mentioned in the content?
What is the name of the faculty mentioned in the content?
- Faculty of Mathematics
- Faculty of Engineering
- Faculty of Computers & Information (correct)
- Faculty of Science
Ahmed Kafafy is teaching a Math course.
Ahmed Kafafy is teaching a Math course.
True (A)
What date is mentioned in the content?
What date is mentioned in the content?
10/30/2019
The faculty associated with Ahmed Kafafy is the Faculty of ______.
The faculty associated with Ahmed Kafafy is the Faculty of ______.
Match the following terms with their meanings:
Match the following terms with their meanings:
Which of the following represents a function of x?
Which of the following represents a function of x?
The notation 'u' indicates a constant function of x.
The notation 'u' indicates a constant function of x.
What does differentiability of a function imply?
What does differentiability of a function imply?
The function u is said to be __________ if it has a derivative.
The function u is said to be __________ if it has a derivative.
Match the following terms with their definitions:
Match the following terms with their definitions:
Flashcards
Date
Date
October 30, 2019
Course
Course
Math-1
Instructor
Instructor
Dr. Ahmed Kafafy
Department
Department
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Study Notes
Differentiation of Functions
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Chain Rule: If y = f(u) and u = g(x), then dy/dx = (dy/du) * (du/dx). This applies when a function is composed within another.
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Product Rule: If y = u * v, then dy/dx = u * dv/dx + v * du/dx. Used for functions multiplied together.
-
Trigonometric Derivatives:
- d(sin x)/dx = cos x
- d(cos x)/dx = -sin x
- d(tan x)/dx = sec² x
- d(cot x)/dx = -csc² x
- d(sec x)/dx = sec x tan x
- d(csc x)/dx = -csc x cot x
Parametric Differentiation
- General Form: To find dy/dx for parametric equations (x = f(t), y = g(t)), use the formula dy/dx = (dy/dt)/(dx/dt).
Implicit Differentiation
- Method: Used when a function is defined implicitly (y isn't solved for outright). Differentiate both sides with respect to x, treating y as a function of x, and solve for dy/dx.
Rational Powers
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General Form: The derivative of xp/q is (p/q)x(p/q) - 1.
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Chain Rule: If a differentiable function u is raised to a rational power (up/q), d(up/q)/dx = (p/q)u(p/q)-1 * (du/dx)
L'Hôpital's Rule
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Indeterminate Forms: Used to evaluate limits of the form 0/0 or ∞/∞ as x approaches a certain value. If direct substitution results in an indeterminate form, differentiate the numerator and denominator separately and take the limit of the new fraction.
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Repeated Application: If differentiation again yields an indeterminate form, apply L'Hôpital's Rule again.
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