C O RB A RV M 



Hypoth. I 



291 



feu 

 hinc 

 adde 



u rz72°, 25 ' 

 corr 260700''' 

 /ojcz 5,4161410 

 /V2~ 0,1 505 150 



/oj"V / 2 // ~ 5, 5666560 

 wV2~i 368685^' 

 feu oj y 2 — o 2 , 2 4^, 45 '/'' 



tt-wV2= 77, 35, i«4 

 /tang (7r-coV2) ~ 10, 6573 889 

 adde IV \ zzz 9,8494850 



10,5068739 

 at /tang w rr- 10,4990797 



Error 



779+a 

 50466 



Hypoth. II 



72°, 35' 



5,+i7*39+ 

 o, 1505150 



5, 567 J 5++ 

 3<*95 3+" 

 102°, 38', 5+" 



77, 2*; * 



10, 6489532 

 9, 8094853 



10, 4984382 

 10, 503+84.8 



— 50466 



128408 : icrr 779+ 2 '-'6\ +" 

 Tnde concluditur verus angulus 00^72°, 31', 4". 



67. Inuento hoc angulo w, erit XziswV^ , 

 et tempus vnius vibrationis cordae :=: — V^ min. (ec. 

 motus autem cordae ex lequentibus aequationibus inno» 

 tefcet j ob y s= — et ? =z r : 



e ~ uxVi r j -1/? Z 



3 == /T^vl fin - "5— COf. 2 0i ^ v^ 

 3 rz: j7 ^ fin. ~ cof. 2 w t V ^ 



VeriKTi pro angulo w infinitos infuper alios valores 

 idoneos inueftigari licet , quo in negotio methodo an- 

 te adhibita vti conueniet , vt pnmum per tentamiua 



O o 2 limites f 



