Problem with math integral substitution

Click For Summary
SUMMARY

The discussion centers on solving the integral \(\int \frac{1}{4x + 7\sqrt{x}} \, dx\) using substitution methods. The suggested substitution is \(y = \sqrt{x}\), which simplifies the integral effectively. The final result of the integral is \(\frac{1}{2}\ln(4\sqrt{x} + 7) + C\), evaluated over the interval (0, +∞).

PREREQUISITES
  • Understanding of integral calculus
  • Familiarity with substitution methods in integration
  • Knowledge of logarithmic functions
  • Ability to evaluate improper integrals
NEXT STEPS
  • Study advanced techniques in integral calculus
  • Learn about different substitution methods for integrals
  • Explore properties of logarithmic functions in calculus
  • Investigate the evaluation of improper integrals
USEFUL FOR

Students and professionals in mathematics, particularly those focusing on calculus and integral evaluation techniques.

ProBasket
Messages
140
Reaction score
0
[tex]\int \frac{1}{4x+7*sqrt(x)}[/tex]

what would be a good u substituion for this problem? i can't think of any at the moment
 
Physics news on Phys.org
[tex]y=\sqrt x[/tex] is a good start.
 
The answer is [tex]\frac{1}{2}\ln (4\sqrt{x}+7) +C[/tex]

Daniel.

P.S.Sure,the integral is evaluated in [itex](0,+\infty)[/itex].
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 6 ·
Replies
6
Views
4K
Replies
1
Views
1K