Odpowiedzi

2010-01-20T18:00:31+01:00
Http://www.wolframalpha.com/input/?i=f%28x%29%3Dx2
http://www.wolframalpha.com/input/?i=g%28x%29%3D-x2
http://www.wolframalpha.com/input/?i=h%28x%29%3D2x
http://www.wolframalpha.com/input/?i=j%28x%29%3D-1%2F2x2