an = 1-[rot][/rot]n/ 1-n for n >1
korleis kan eg visa at 1-[rot][/rot]n/ 1-n = 1/1+[rot][/rot]n
tallfølgje eg ikkje klarar
Moderators: Vektormannen, espen180, Aleks855, Solar Plexsus, Gustav, Nebuchadnezzar, Janhaa
-
Solar Plexsus
- Over-Guru
- Posts: 1686
- Joined: 03/10-2005 12:09
(1 - [rot][/rot]n) / (1 - n) = (1 - [rot][/rot]n) / [(1 - [rot][/rot]n)(1 + [rot][/rot]n)] = 1/(1 + [rot][/rot]n).