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Flashcards covering derivatives, integration, theorems, and applications in AP Calculus.
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What condition must y=f(x) satisfy at critical points for derivatives?
y=f(x) must be continuous.
How is a local minimum identified using the first derivative?
dy/dx goes from (-, 0, +) or (-, undefined, +) or dy/dx > 0.
How is a local maximum identified using the first derivative?
dy/dx goes from (+, 0, -) or (+, undefined, -) or dy/dx < 0.
How is a point of inflection identified using concavity?
Concavity changes: goes from (+, 0, -), (-, 0, +), (+, undefined, -), or (-, undefined, +).
State the Chain Rule for differentiation.
d/dx [f(u)] = f'(u) * du/dx OR dy/dx = (dy/du) * (du/dx)
State the Product Rule for differentiation.
d/dx (uv) = u'v + uv'
State the Quotient Rule for differentiation.
d/dx (u/v) = (u'v - uv') / v^2
What is the derivative of sin(x)?
cos(x)
What is the derivative of cos(x)?
-sin(x)
What is the derivative of tan(x)?
sec²(x)
What is the derivative of cot(x)?
-csc²(x)
What is the derivative of sec(x)?
sec(x)tan(x)
What is the derivative of csc(x)?
-csc(x)cot(x)
What is the derivative of ln(u)?
(1/u) * (du/dx)
What is the derivative of e^u?
e^u * (du/dx)
State the Fundamental Theorem of Calculus.
∫[a, b] f(x) dx = F(b) - F(a), where F'(x) = f(x)
State the corollary to the Fundamental Theorem of Calculus.
d/dx ∫[a(x), b(x)] f(t) dt = f(b(x))b'(x) - f(a(x))a'(x)
State the Intermediate Value Theorem.
If f(x) is continuous on [a, b], and y is a number between f(a) and f(b), then there exists at least one number x=C in (a, b) such that f(c)=y.
State the Mean Value Theorem.
If f(x) is continuous on [a, b], AND the first derivative exists on (a, b), then there is at least one number x = c in (a, b) such that f'(c) = (f(b)-f(a))/(b-a)
Area between curves is calculated with what integral?
Integral of (top - bottom) dx OR Integral of (right - left) dy
State the formula for Arc Length.
L = ∫ √[1 + (f'(x))²] dx
How is velocity found from position?
velocity = d/dt (position)
How is acceleration found from velocity?
acceleration = d/dt (velocity)
Define average velocity.
Average velocity = (final position - initial position) / (total time)