MFTH. FAC. COMPFT. ANGVL. SINFS AC ij>s 



I^P 4-^^ 9-^P J(^-^P 2^,-i-p 7.^-^p gj-f. 



' 1 • 4 • 9 * 16 • 25 ' 36 * ^^^' 



Solutio. 



Pomtiir huius expreflTionis propofitae valor quaefitus iz: Sy 

 et fumtis logarithmis , erit /j- ^n / ( i-}-p ) + 

 ^(i-l-r) + ^(i4-|')+^(^+T?)+/(i+5|)-J-/(i4-.?)+etc. 

 His igitnr logarithmis per feries notas expreflis habebitur 

 /i zz -f- I - f -4- f - r -H f - f -H etc. 



^f-^ + 3^~£^ + £^-£^ + etc. 



^ i^ - ir;^ -H 3.,6J — ^.,6+ -+- T^ 6m6« -t-etc. 

 etc. 

 Sumantur difFerentia .; eritque 



-^=: I -i) + / ^f^p^^f + etc. 

 -t-i -?.+ ?.'-?/ -Frs*-?^ -4- etc. 

 H- |-|»-H?3-f:-i-f:-fJ + etc. 



-^ h- i^-i-t^-tU-^tU-tU + etc. 

 etc. 

 Cum nunc hae feries omnes fint geometricae , iummari 

 poterunt, hacque hd:o prodibit 



Huius autem feriei fummam nuper exhibui *, vnde fi cir- 

 culi cuiiis diameter =i i , peripheria ponatur ir: tt erit 



^^, erit dpznzqdq y atque aequatio inuenta abibit in 

 hanc 



Bb 2 



i?S 



