H I S T 1 R E. i83 



e (e r — e^ *t , \ * e (e r — '«- r ) 

 A tang. -L_ ; -f - A tang. \ „_ ■ ' 



e—i e* -\-'e~ 2 



i ir r 



* T 



Cofofiariam fc. 



§. 8<v Sit c~o, 6r= i, fime*, tam fit 

 e r ~ e" r . A ^ e r — e~ r 



...» 



A tang. — — — -fc- A tang. 



e 2 -f- e~ 2 e 4 -H e~ 4 



+ .. . + A tang. -+- . . 



— ( r 4- i) 4 — A tan & er * 



$. 87- i.) Summationis J. 84. demonftratio fynthe- 

 rica condi poteft ex reiblutione termini generalis in bino- 

 jum aicuum differentiam: eft nimirum 



A tang 



E x -h.b.Er x -\-:c 



oE 



r 



A tang. 



&*#{*+'jittiJ 



A tang 



(E'- — i)fE^ r -|- JlJL-Y 



*0 



