FT SOLVTIO PPOBLEMATIS. 137 



Seu cum fit AM— /7|l::qi^pi7^:T^)) haec ex- 

 preffio ad noftrani formam tradatam /y^Bfe^lf^) 

 rediicetur ponendo : 



5Cr=^^; ^==-»; A=r^*; B=r-(«-f-i)M; C— « 

 ka vt fit y(A-HB2 5;H-C5;*):z:y(^^-5;s)(^^-«2s). 



Coroll. 2. 



17. Cum ob aznifVli-n) fit ^^r^^p— liiy^ 

 ct ^i = ^2 yHEiJ-:, erit anguli AM2 finus -H 

 =^l/^-fell; cofinus r:f^,=:7(^:f^l^ et tangens 

 — r^ — ^{^^l • quas formulas probe notaife 

 iuuabic 



finus AM2=y||£^H 

 cofinus A M 2 z:: \,itb-7^] 

 tang. AM2=:-^(-^. 



Coroll. 2' 



18. Defignabo porro arcum AM, qui abfciifae 

 cuique AZ — z refpondet , hac exprefllone U:z, vt 



fit AMrrn : zzzfdzy-Yiir^' Hinc fi variae ab- 

 fciffae ponantur 



AF=:/; APrrp; AQiz:^; AR—r; ADzzAB— ^ 

 €runt arcus refpondentes : 

 Af-Tl:f; Ap-U:p\ Aqz.U\q-^ Ar-Uw^ AMBzrT:^. 



Coroll. 4. 



19. Hoc modo etiam arcus , qui non in pundo 



A terminantur, commode exprimi poterunt ; fic enim 

 erit : 



Tom. VII.Nou.Cona. S arcus 



