[ 4« ] 



U 



«. n — u+ I- « — «+2 - to — terma 

 The general term is + — ■ — X 



I. 2. 



H — U 1 



n — u. 

 2 J- 



I. " 1 



>f- when ~ IS even • 



y and « of the form 4^ + r. 

 —when — is odd ! 



+ when — is odd j 



}► and « of the form 4/ -f 3. 



— when — is even j 

 2 J 



Dim ON. The general term of the fine of nX Q;— <z = (II) 



= + 



K 1 



n — u^i. n — K+2 - - to "~T~ '^^^™*„_„ 



a — I 



I. 2. 3 - - -— - 



7^ \K— a 



2 f J-, Q;— ^l 



X J, Q;— ^j where Q,is a quad. 



I. Let n be of the form 2/, / being odd. The fine of %p 

 X Q7— ^ = Jj ip — 2 0,+ 2 Q — ip a = (becaufe 2/ — 2. Q^is a mul- 

 tiple of the circumference) fine 2 Q^2/ a — s^ipa .'. when « is of 

 the form dp, p being odd the general term of the Cue of na ss 



Vol. VII. F + 



© 



