54 Riflessioni Analitiche ec. 



-^L|/|.MaL|/i = L.(^)^=^L.-f=-.J.L..= 

 _ ± L.( I-+-I )= _ ^ L.( . -H tan.45"' )=- ^ t^ - ^'"'f°^' 



, (tan45°)» _ (tan45°)4 _^ (tanjSV _ (tan.45")« _^ /" Vi)=: l/ | L 



3 4 5 6 -' 1^ •' al a 



Si trova similmente L.( i -i-\/ — i ) = L. ( i H-tan. 45° i/ — ' ) 



tan45''l/— 1 (130.45»)» (tan ^5'')^[/—i (tan.45')'* (tan.45°:'t/— i 



— I "* a 3 4 *~ 6 



(tan.45 )* (tan.45°)7|/— 1 (tan^S")» _^ tan.45"l/— i i 



-^ 6 7 8 — ^J = ; *- T 



(tan.45")Jt/— I I (tati 45°)5|/— [ , (tan.45' )7t/—i i 



a 4""^ 5 ■+■ "S^ . 7 T 



. (tan.45°)»|/3r- (tarì.45-)7l/ ^^r , ( tan. 45^91/=^^' ^ n,„i^„^ 



-I 5 Ij -*- g — /. UUU4UC 



L.( i-Htan. 45°|/— I )-h L. 008.45° = L.( h-j/— i)-i-L. 5/ -7 

 = L.( I H-/:rT) - -LL.{i-Hi) = 4- -H 4- — 4- -H - — - -h/ 



^ »^ 'a^ '4 6 oioia-' 



tHn4S»t/— 1 (tan.45°)3l/— t (tan.45°)5^/— 1 (tan.45°)7t/— i 



"^ 1 3 "*" 5 7 



(tan.45°,9^/— . ^^ ^ I I , , j r tan_45v[— I 



(t.in.45%3t/— 1 (taii.45 »)»(/— t (t;in.45°)7(/— i (tan.45°)9|/— i 



a ^ 5 y~ ^ 9 



^f=^-^-^^-^^^-f,e perciò 



45°= : ^-+-T ^-*-fi valore vero^ e reale. Questo me- 



O J '^ 



desimo metodo dà il secondo valore di 45^l/ — *= — L.(i — [/ — i) 

 -L-/'ì=-L- (i-i/^Ty^-l-L.(i -Hi)=-^ 



