Integration Help: dx/(5-4x-(x^2))^(5/2)

  • Thread starter Thread starter joseph9496
  • Start date Start date
  • Tags Tags
    Integration
joseph9496
Messages
5
Reaction score
0

Homework Statement



Hi everyone
im stuck with the following integration..

Homework Equations



integral of dx/(5-4x-(x^2))^(5/2)

The Attempt at a Solution



can anyone help me?
thanks
 
Physics news on Phys.org
… complete the square … !

Hi joseph! :smile:

With quadratics, it's usually best to start by completing the square:

5 - 4x - x^2 = 9 - (x + 2)^2.

(And then you can even change to y = x + 2, dy = dx, if you like!)

Does that help? :smile:
 
OH YEAH!
i never thought of that!
thanks alot!
 
Thread 'Use greedy vertex coloring algorithm to prove the upper bound of χ'

Thread 'Use greedy vertex coloring algorithm to prove the upper bound of χ'

Hi! I am struggling with the exercise I mentioned under "Homework statement". The exercise is about a specific "greedy vertex coloring algorithm". One definition (which matches what my book uses) can be found here: https://people.cs.uchicago.edu/~laci/HANDOUTS/greedycoloring.pdf Here is also a screenshot of the relevant parts of the linked PDF, i.e. the def. of the algorithm: Sadly I don't have much to show as far as a solution attempt goes, as I am stuck on how to proceed. I thought...
View full post »

Similar threads

Verify Green's Theorem in the given problem
Replies
10
Views
2K
Find the result of definite integration
Replies
6
Views
1K
Solve the given second order differential equation
Replies
14
Views
1K
Finding volume using integration
Replies
1
Views
2K
Solve the given problem involving integration
Replies
6
Views
2K
Volume between a region (above x-axis and below parabola) and a surface
Replies
4
Views
2K
Obtain a nonzero solution of ##y''-4y'+x^2(y'-4y)=0## by inspection
Replies
7
Views
2K
Integral using substitution x = -u
Replies
12
Views
2K
Solve ##\int\frac{e^{-x}}{x^2}dx## and ##\int \frac{e^{-x}}{x}dx##
Replies
7
Views
2K
Find the PDF in terms of another variable
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top