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Published byArabella Hancock Modified over 8 years ago
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(Part 2 of the FTC in your book) If f is continuous on [a, b] and F is an antiderivative of f on [a, b], then **F(b) – F(a) is often denoted as This part of the FTC is significant because it allows us to evaluate definite integrals.
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If f is continuous on [a, b] and then F’(x) = f(x) at every point x in [a, b]. You may also see this as
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Every continuous f is the derivative of some other function, namely Every continuous function has an antiderivative. The processes of integration and differentiation are inverses of each other!
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If, integrate to find F(x). Then, differentiate to find F’(x).
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Using FTC for, find F’(x).
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If, find h’(8).
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Find if (change bounds)
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Construct a function in the form of that has tan x as the derivative and satisfies f(3) = 5. andwhen x = 3, so
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Net area counts area below the x-axis as negative area. Computing area on an entire interval using antiderivatives helps us find net area Total area is the entire amount of area enclosed by a graph Problems that say find “area” from here on out imply for you to find “total area.”
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To find the area between the graph of y = f(x) and the x-axis over the interval [a, b] analytically, 1. Break [a, b] apart using the zeros of f 2. Integrate f over each subinterval 3. Add the absolute values of the integrals
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Find the area of the region between the curve y = 4 – x 2 and the x-axis over [0, 3]. 1.Break the curve into two subintervals since part of it is above the x-axis and the other is below. 2.Break the integral into [0, 2] and [2, 3] (subtract to make the second area positive)
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Find the net area of the region between the curve y = 4 – x 2 and the x-axis over [0, 3].
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To find the area between the graph of y = f(x) and the x-axis over the interval [a, b] numerically, evaluate
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