11% I. F. Mertens 
1=— (+9) P=—- +) = — 3 m—B) 
und zur Abkürzung 
F 
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DO 
8 
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8 
BS 
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M DD 
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S 8 
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Die Unbekannten «,, B,, 94, © genügen dann den Gleichungen 
0 + CB, tey +2e=lV 
(16) Ba + B + B% + 269 = m’ 
Ve TVB + +270 —W 
(17) 0" — By — Yı% — AB, == 0 6 
(0 + da, + (0, + 91)By T (0 + 9)y, + 20,0 = ET = . 
Berechnet man die Determinanten d,, d,, d,, 0, So ergiebt sich 
9, = 2a(1 — By") + 20"B(y" — 1) + 2a*y(B° — 1) 
= 2a(1 — Bey?) + 24"(8 + y)(By — 1) 
= 2a(1 — By) + By — af — 07) 
= 2aa(b + c — a) 
d, — 2Bb(c—+ a — b) 
0, = 2ye(a + b— c) 
6, = 1 — By? — y'a? — a2ß? + 20282? 
— 2(be + ca + ab) — a? — D? — c* — 2abe. 
Hieraus folst 
