What is the integral of [math]\sqrt {\frac {1-x^{2}}{1+x^{2}}}[/math]?
What is integral of [math]\dfrac{ln(1+x^2)}{\sqrt{1-x}}[/math] ?
מהו האינטגרל של [math]\sqrt {\frac {1-x^{2}}{1+x^{2}}}[/math]?
מהו אינטגרל של [math]\dfrac{ln(1+x^2)}{\sqrt{1-x}}[/math] ?