<img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Stati_de_1910/fulltext/img/Einst_Stati_de_191013x.png" alt=" t tn = 2 p n --- hn T " class="par-math-display"/>
<img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Stati_de_1910/fulltext/img/Einst_Stati_de_191014x.png" alt=" ( ) 2 n2- p n0 n0 - T 2 cotg gn = ---------3-------. s n-- T 3 " class="par-math-display"/>
</center>
<p class="nopar"/>
<p class="noindent">Da </p>
<center class="par-math-display">
<img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Stati_de_1910/fulltext/img/Einst_Stati_de_191015x.png" alt="@ G 2 p sum ----x = --- cos2 f cos w nn An sin2 tn1), @ z c T " class="par-math-display"/>
</center>
<p class="nopar"/>
<p class="noindent">erscheint
<span class="cmmi-12">k</span>
<sub>
<span class="cmmi-8">x</span>
</sub>
als </p>
<center class="par-math-display">
<img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Stati_de_1910/fulltext/img/Einst_Stati_de_191016x.png" alt=" 3c2 sum sum sin gn kx = - ----T 2 cos2 f sin f cos w n m An ---3--- 8p n Am m cos(tn - gn) sin tm , 3c2 sum sum sin g - ----T 2 sin f cos w n m An ---2-n- 8 p n Am sin (tn- gn) cos tm. " class="par-math-display"/>
</center>
<p class="nopar"/>
<p class="noindent">Bei der Mittelwertbildung kommen wegen der Unabhängigkeit
<img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Stati_de_1910/fulltext/img/Einst_Stati_de_191017x.png" alt=" --- 3 c2 2 3 sum 2 sin gn kx = ----2 T sin f cos w nAn ---2-- { 16 p 2 ------ n = -3c-- A2 T -s-- sin3 f cos w.3) 16 p2 n0T 2 n0 " class="math-display"/>