Full text: Lehrbuch der niedern Arithmetik

XXYI 
Tabelle II. 
Geometrische Progressions-Formeln. 
(zu 2tem Aus. deß §. 175). 
Für 
wenn 
gegeben 
sind. 
ist die Formel 
u 
a> <1> n 
" — a q n *; 
a, S, q 
e S - a 
u —8 ; 
4 
n, 8, q 
*1 n 1 ( ( l 1) s 
u — n ; 
q — 1 
a, 8, n 
u (S —11) n- “ J — a (S — a) 11—1 = 0 ; 
S 
a, q, u 
S = 4U -, a ; 
q — 1 
a, q, n 
a (q"-l). 
» — , , 
q — 1 
n, q, U 
u (q n 1) 
’ q n 1 (q — 1) 5 
a, n, u 
n—1 
« */-- a 
S — ~ ; 
n—i 
✓ 1 
a
	        
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