Erit igitur 
209 
— fHT 
f 
co 
x Cos 4 mhx tang Xx « dx 
X‘ 
vr ~tm\h i — e 
— g . - 
2 s 
1 4 ”« 
-2ÀÂ 
-2AÅ 
• ( l4 ) 
quæ formula itaque valet, si m sit numerus quicunque integer 
positivus, unico excepto casu, quo sit m zzz o : tum enim ad 
formulam (2) recurrendum est, quæ verum integralis valorem 
hoc casu exprimit. 
■* i 
Si in formula (11) m mutetur in 2m , fiet 
f 
00 
, , -2 AÂ -4 mXh 
Sin (±m\x Cot A x . dx 7: (l+« ) 
h z -f- x z 
2 h 
-2A h 
1 — e 
quæ ad formulam (10) addita dat 
/ 
co 
Sin 4 mAx . Cosec 2hx . dx tc ~ 2 A h 1 — e 
-4mA h 
Å 2 
— ? 
h 
-4A k 
1 — c 
vel si A mutetur in 
2 
/ 
CO 
Sin 2111ÄX Cosec A# . 
/i 2 4- 
- 2 mKh 
7T -A» 1 — « 
— e . — 
2 - 2 A h 
x — e 
* • 1 
(i 5 ) 
Eodem omnino modo e formulis (12) et (i 4 ) obtinetur 
-(27üH-i)AÂ 
T- 
Cos 2111ÅX Cosec Xx . dx 
h 2 4- 
9 X . 
-2A h 
. . • (16) 
