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Unit 6: Integration and Accumulation of Change
6.4 The Fundamental Theorem of Calculus and Definite Integrals
Understanding the Fundamental Theorem of Calculus:
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The Fundamental Theorem of Calculus has two parts that are inverse to each other.
True
What does the definite integral
∫
a
b
f
(
x
)
d
x
\int_{a}^{b} f(x) dx
∫
a
b
f
(
x
)
d
x
equal according to the Fundamental Theorem?
F
(
b
)
−
F
(
a
)
F(b) - F(a)
F
(
b
)
−
F
(
a
)
Match the concept with its definition:
Differentiation ↔️ Finds the rate of change of a function
Integration ↔️ Finds the total accumulation of a function
What is the antiderivative of x^2</latex>?
x
3
3
\frac{x^{3}}{3}
3
x
3
What is the first step in evaluating a definite integral using the Fundamental Theorem of Calculus (FTC)?
Find the antiderivative
The first part of the FTC states that the derivative of an integral gives back the original function.
True
Differentiation finds the rate of change of a
function
.
True
The definite integral of
∫
1
3
x
d
x
\int_{1}^{3} x dx
∫
1
3
x
d
x
is equal to
x
2
2
\frac{x^{2}}{2}
2
x
2
evaluated at the upper and lower bounds
What does the Fundamental Theorem of Calculus link together?
Differentiation and integration
The derivative of the integral of a
function
is the original function itself.
True
The definite integral equals the difference of the antiderivative evaluated at the upper and lower
bounds
Steps to evaluate definite integrals using the Fundamental Theorem of Calculus:
1️⃣ Find the antiderivative of the function
2️⃣ Evaluate the antiderivative at the upper and lower bounds
3️⃣ Subtract the values to find the definite integral
When evaluating a definite integral, you must always include the constant of integration
+
+
+
C
C
C
.
False
What does the first part of the Fundamental Theorem of Calculus state?
F
′
(
x
)
=
F'(x) =
F
′
(
x
)
=
f
(
x
)
f(x)
f
(
x
)
What are differentiation and integration considered in relation to each other?
Inverse operations
What is the derivative of
F
(
x
)
=
F(x) =
F
(
x
)
=
∫
2
x
t
2
d
t
\int_{2}^{x} t^{2} dt
∫
2
x
t
2
d
t
according to the Fundamental Theorem of Calculus?
x
2
x^{2}
x
2
If F(x) = \int_{a}^{x} f(t) dt</latex>, then <latex>F'(x) = f(x)
Differentiation and integration are
inverse
processes.
What is the value of
∫
1
3
x
2
d
x
\int_{1}^{3} x^{2} dx
∫
1
3
x
2
d
x
using the Fundamental Theorem of Calculus?
26
3
\frac{26}{3}
3
26
The definite integral is calculated by subtracting
F
(
a
)
F(a)
F
(
a
)
from
F
(
b
)
F(b)
F
(
b
)
, where
a
a
a
and
b
b
b
are the lower and upper bounds
The second part of the FTC calculates the definite integral by evaluating the antiderivative at the upper and lower
limits
The Fundamental Theorem of Calculus formalizes the relationship between differentiation and
integration
What does the Fundamental Theorem of Calculus link together?
Differentiation and integration