Find the area of the region

  • Thread starter Starrrrr
  • Start date
  • #1
34
2
Member warned to include complete problem description and template
1. f_-2^{5} 1x-2dx.


2. 1. f_a^{b}f(x)dx


3. x^2/2 -2(x)|_-2^5
25/2-2(5)-(4/2-2(-2))=-7/2

What am I doing wrong?
 

Answers and Replies

  • #2
Ray Vickson
Science Advisor
Homework Helper
Dearly Missed
10,706
1,728
1. f_-2^{5} 1x-2dx.


2. 1. f_a^{b}f(x)dx


3. x^2/2 -2(x)|_-2^5
25/2-2(5)-(4/2-2(-2))=-7/2

What am I doing wrong?
What makes you think you have done something wrong?
 
  • #3
34
2
What makes you think you have done something wrong?
When I put the answer to my online assignment thing it says incorrect
 
  • #4
34
2
What makes you think you have done something wrong?
Allegedly the answer is 12.5 but I don't know how the computer got that
 
  • #6
Ray Vickson
Science Advisor
Homework Helper
Dearly Missed
10,706
1,728
Please take some time to look at our LaTeX tutorial - https://www.physicsforums.com/help/latexhelp/. Your post is just about incomprehensible.
So you must think more about the meaning of the word "area". Draw the graph of ##y = x-2, \: -2 \leq x \leq 5##. What are you actually computing when you calculate the integral ##\int_{-2}^5 (x-2) \, dx##?
 

Related Threads on Find the area of the region

  • Last Post
Replies
2
Views
9K
  • Last Post
Replies
5
Views
8K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
1
Views
6K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
4
Views
667
  • Last Post
Replies
7
Views
3K
Replies
2
Views
751
Replies
2
Views
4K
Replies
1
Views
2K
Top