1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepan [7]
3 years ago
10

Use integration by parts to find the integrals in Exercise. ∫^3_0 3-x/3e^x dx.

Mathematics
1 answer:
Viefleur [7K]3 years ago
6 0

Answer:

8.733046.

Step-by-step explanation:

We have been given a definite integral \int _0^3\:3-\frac{x}{3e^x}dx. We are asked to find the value of the given integral using integration by parts.

Using sum rule of integrals, we will get:

\int _0^3\:3dx-\int _0^3\frac{x}{3e^x}dx

We will use Integration by parts formula to solve our given problem.

\int\ vdv=uv-\int\ vdu

Let u=x and v'=\frac{1}{e^x}.

Now, we need to find du and v using these values as shown below:

\frac{du}{dx}=\frac{d}{dx}(x)

\frac{du}{dx}=1

du=1dx

du=dx

v'=\frac{1}{e^x}

v=-\frac{1}{e^x}

Substituting our given values in integration by parts formula, we will get:

\frac{1}{3}\int _0^3\frac{x}{e^x}dx=\frac{1}{3}(x*(-\frac{1}{e^x})-\int _0^3(-\frac{1}{e^x})dx)

\frac{1}{3}\int _0^3\frac{x}{e^x}dx=\frac{1}{3}(-\frac{x}{e^x}- (\frac{1}{e^x}))

\int _0^3\:3dx-\int _0^3\frac{x}{3e^x}dx=3x-\frac{1}{3}(-\frac{x}{e^x}- (\frac{1}{e^x}))

Compute the boundaries:

3(3)-\frac{1}{3}(-\frac{3}{e^3}- (\frac{1}{e^3}))=9+\frac{4}{3e^3}=9.06638

3(0)-\frac{1}{3}(-\frac{0}{e^0}- (\frac{1}{e^0}))=0-(-\frac{1}{3})=\frac{1}{3}

9.06638-\frac{1}{3}=8.733046

Therefore, the value of the given integral would be 8.733046.

You might be interested in
Evaluate the expression described below if the number is 4.
Archy [21]
<em>x</em>² - x

<em>x</em> = 4

4² - 4 

16 - 4 = 12

Hope this helps!
5 0
3 years ago
How do I calculate 1/4-1/10 ?
Viktor [21]

Answer:

Hello there! I'm Ashlynn I'm always ready to help anyone in need of it!

__________________________________________________

(1 / 4) - (1 / 10) = 0.15

__________________________________________________

Calculate definition, to determine or ascertain by mathematical methods; compute: to calculate the velocity of light.

__________________________________________________

<em>“It makes a big difference in your life when you </em>

<em>stay positive.”</em>

                                                 - <em>Ellen DeGeneres</em>

<em>___________________________________________________</em>

<em>           </em>

<em>                                               </em><em> Have a great day!! </em>

<em>                                                                      </em><em> - Ashlynn</em>

<em />

                                                       (*^-^*)

8 0
3 years ago
Determine if the two triangles are congruent. If so, select the appropriate congruence postulate. If not, select the reason why.
morpeh [17]

Answer:

Asa

Step-by-step explanation:

Because if u look left to right on one triangle there is a angle and in between they have a com on line and on the right theres another angle so There for it’s angle side angle

4 0
2 years ago
PLS HELP ASAP IW ILL GIVE BRIANLEST IF RIGHT DO NOT ANSWER UNUSEFUL ANSWERS
Roman55 [17]

1 equals 0.46 (make a line over the 6 to show it is repeated)

2 equals 0.4 (make a line over the 4 to show it is repeated)

3 equals -0.6 (make a line over the 6 to show it is repeated)

4 equals -0.857142 (make a line over all numbers past the decimal to show it is repeated)

5 equals 3.3409 (make a line over the 09 at the end to show it is repeated)

6 equals -1.7727 (make a line over the 27 at the end to show it is repeated)

7 equals 66.5%

8 equals 3.16 (make a line over the 6 to show it is repeated)

9 equals -9 over 10

10 equals -17 over 20

11 equals -3 and 4 over 5

4 0
3 years ago
Read 2 more answers
While bird watching gabrielle saw 6 robins and 3 blue jays. Chase saw 3 robins and 6 blue jays. Who saw more birds? Tell which p
Serjik [45]
They both saw the same amount because 6+3 = 9 and 3+6 = 9
4 0
3 years ago
Other questions:
  • If the cost of a raffle ticket is $2, which of the following expressions could be used to represent the cost of m tickets? 2m 2
    9·2 answers
  • 3 over 14 equals x over 42
    9·1 answer
  • Jing bought 4 cans of paint and 1/2 of a pint of special paint additive formulated to reduce mildew. Before painting his house,
    14·2 answers
  • Write a number in which the digit 8 is ten times the value of the digit 8 in 4.381
    14·1 answer
  • What is the center and radius for the circle with equation ...
    13·1 answer
  • PART 2.2. HELP ASAPP.
    5·1 answer
  • The first three terms of an arithmetic sequence are as follows. 17,25 , 33 Find the next two terms of this sequence.
    10·2 answers
  • 14. The current of a river is given by the
    12·1 answer
  • Solve for x. Round your answer to the nearest tenth.
    7·2 answers
  • =
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!