Solve Integration Problem - Get Help Now!

  • Context:
  • Thread starter Thread starter NotaMathPerson
  • Start date Start date
  • Tags Tags
    Integration
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
2 replies · 1K views
NotaMathPerson
Messages
82
Reaction score
0
Hello can you help solve this problem

$$\int_{}^{}\frac{ds}{\sqrt{s^2-0.01}}$$

I tried using method of substitution but I still could not find a good cancellation.
Please tell me what to do. Thanks!
 
Physics news on Phys.org
Integrals of that form can be generalized to
$$\int \frac{ds}{\sqrt{s^2-r^2}}$$

Using the substitution $s=r \sec\left({x}\right)$ simplifies the integrand because of the property $\sec^2\left({x}\right)-1=\tan^2\left({x}\right)$.

Trying this, what do you get?
 
The substitution $\displaystyle \begin{align*} s = r \cosh{(t)} \implies \mathrm{d}s = r\sinh{(t)}\,\mathrm{d}t \end{align*}$ may lead to a simpler integrand.