Integrating piecewise continuous functions Use geometry and the result of Exercise 88 to evaluate the following integrals. 90. ∫ 1 6 f ( x ) d x , where f ( x ) = { 2 x if 1 ≤ x < 4 10 − 2 x if 4 ≤ x ≤ 6
Integrating piecewise continuous functions Use geometry and the result of Exercise 88 to evaluate the following integrals. 90. ∫ 1 6 f ( x ) d x , where f ( x ) = { 2 x if 1 ≤ x < 4 10 − 2 x if 4 ≤ x ≤ 6
Solution Summary: The author evaluates the value of the definite integral displaystyle 'underset'1overset6int, based on the result of Exercise 88 and geometry.
Integratingpiecewise continuous functions Use geometry and the result of Exercise 88 to evaluate the following integrals.
90.
∫
1
6
f
(
x
)
d
x
,
where
f
(
x
)
=
{
2
x
if
1
≤
x
<
4
10
−
2
x
if
4
≤
x
≤
6
Definition Definition Group of one or more functions defined at different and non-overlapping domains. The rule of a piecewise function is different for different pieces or portions of the domain.
A small company of science writers found that its rate of profit (in thousands of dollars) after t years of operation is given by P'(t) = (5t + 15) (t² + 6t+9) ³.
(a) Find the total profit in the first three years.
(b) Find the profit in the sixth year of operation.
(c) What is happening to the annual profit over the long run?
(a) The total profit in the first three years is $
(Round to the nearest dollar as needed.)
Find the area between the curves.
x= -2, x = 7, y=2x² +3, y=0
Set up the integral (or integrals) needed to compute this area. Use the smallest possible number
of integrals. Select the correct choice below and fill in the answer boxes to complete your choice.
A.
7
[[2x² +3] dx
-2
B.
[[ ] dx+
-2
7
S [ ] dx
The area between the curves is
(Simplify your answer.)
The rate at which a substance grows is given by R'(x) = 105e0.3x, where x is the time (in days).
What is the total accumulated growth during the first 2.5 days?
Set up the definite integral that determines the accumulated growth during the first 2.5 days.
2.5
Growth = (105e0.3x) dx
0
(Type exact answers in terms of e.)
Evaluate the definite integral.
Growth=
(Do not round until the final answer. Then round to one decimal place as needed.)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Numerical Integration Introduction l Trapezoidal Rule Simpson's 1/3 Rule l Simpson's 3/8 l GATE 2021; Author: GATE Lectures by Dishank;https://www.youtube.com/watch?v=zadUB3NwFtQ;License: Standard YouTube License, CC-BY