Full text: Praktische Anleitung zur Arithmetik und Algebra

129 
V—Kund V—Kaddirt, geben V—K + V ~b=2V~b 
2V —3 » V—3 » » 2\s — 3 + V—3=3V—3 
4V-2 » 4V-2 " » 4-V—2-f-W—2=IV—2 
- 5— V—5 
— 5-V-5 
i—V—i 
a—yf—h 
— 5- V-5 
- b'\-\J 5 
l-i-V-5 
— a +V—k 
—10—2V—5 
—10 
2 1 
0 
II. Differenzen. 
V — K von ^ — a subtrahirt, läßt >/ —a —>>/ —K 
V — 4 » - V — 3 
— V — 2 » V — 3 
— V'— 3 » V — 4 
V — 5 » 2V — 5 
2V — a » 5V — a 
V —i • 1 
» - V — 3 — V — 4 
* V — 3 + V — 2 
» - V — 4 + V — 3 
* V — 5 
» 3V — a 
» i — v ■— 1 
3 + 2V — 1 
a — KV — 1 
— 1 - V - 1 
c + V — 1 
4 "t* 3V —■ 1 
a “— c — (k + 1) V — 1 
III. Products. 
V — a X V — a = — »; denn ba V **' a die 
Quadratwurzel aus — a ist, so muß auch — a das 
Quadrat von V — a seyn. Oder: . 
(V — ay = (— a^) 2 = — aJ == —. a, 
— V — a X —V — a — — a; — 3 X — V —-3 ~ 3. 
2 V — fix V'— 6 — — 12; IV — 20 X !V — 20 — — 2. 
a V — 1) x Ci/ - d = ay'b . ^ — 1 X Cy/d . 
V — 1 = acy'by'd X V — 1 . V — 1= ac\3bd « 
— 1 = — acV^d. Eben so wird 
— a>/ — b X —- d — aci/bd. 
(4 + 1V - 3) (4 - V-3)—16 + 4V- 3-4V- 3 + 3 = 19. 
(1 — IV-DCl + IV -1)—2; (-5-V-SX-ü+V-S)--30. 
V 
IV- Quo ti en t e n. 
ab ! yf — a 
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