Help Solving Infinite Limit Homework Statement

  • Thread starter Thread starter coreluccio
  • Start date Start date
  • Tags Tags
    Infinite Limit
coreluccio
Messages
35
Reaction score
2

Homework Statement



k0mv13.jpg


Homework Equations


The Attempt at a Solution



This is a problem I have for a homework assignment. I punched it in on Wolfram, and there is the answer it gives. I can't figure out how to solve this thing. I tried multiplying by the conjugate radicals and simplifying, tried factoring out the highest power of x, but nothing seems to work.
 
Physics news on Phys.org
Prove $$\int\limits_0^{\sqrt2/4}\frac{1}{\sqrt{x-x^2}}\arcsin\sqrt{\frac{(x-1)\left(x-1+x\sqrt{9-16x}\right)}{1-2x}} \, \mathrm dx = \frac{\pi^2}{8}.$$ Let $$I = \int\limits_0^{\sqrt 2 / 4}\frac{1}{\sqrt{x-x^2}}\arcsin\sqrt{\frac{(x-1)\left(x-1+x\sqrt{9-16x}\right)}{1-2x}} \, \mathrm dx. \tag{1}$$ The representation integral of ##\arcsin## is $$\arcsin u = \int\limits_{0}^{1} \frac{\mathrm dt}{\sqrt{1-t^2}}, \qquad 0 \leqslant u \leqslant 1.$$ Plugging identity above into ##(1)## with ##u...

Similar threads

Back
Top