-
Definition :
Annäherung einer Gerade/Kurve an X-Achse f(x) =
2x 2 : x =
0 Rest
y
=
02 + 0 + 3 0 = 1 .
4x2 + 1
.
1 Polynomdivision : Zähler durch Nenner
YA
= 0
y
=
-
3 4x2 + 1 =
2x2 + 3 -
1
.
2 Dabei bleibt ein Rest ( =
R) ux2 = 2x2 + 2 1 -
2x2
Y133
Sa : (x- 3)
ohne Rest f(x) 1 Res 1
Ergebnis 2x2 2 2
= = = = :
6 x2 1 im X 1
1
YA
= = =
7. Polynomdivision
5. Symmetrie Skizze ! Funktion kann auch keine
C-Möglicherweise :
Rechnung umformen
W
-
PS :
symmetrisch zum
Ursprung f(-x) = -
f(x) Symmetrie aufweisen ! .
1 Nullstellen von -
3 bis 3 raten muss O
ergeben !
-
AS :
symmetrisch zur
y-Achse :
f(-x) =
f(x) Prüfen : Wenn Exponenten C . Gefundene Nullstelle mit
umgekehrtem Vorzeichen in Klammer durch die
.
AS
gerade
-
:
-
ungerade :
PS Rechnung setzen
.
3 Polynomdivision :
Rechnung durchführen
AS PS
:
-
f(x) = 1 .
Vor
jedes X
jeweils (noch) f(x) = aux 1 .
Vor
jedes x
jeweils (noch) ein X = -
3
; Xz
= 3
; Xy = 1 - es
-
(x3 + 1x2)
ein Minus Setzen Minus Setzen f(x) = (X +
b) .
1)
beide Seiten
. (-1)
? wahrscheinlich nicht
PS
nötig
·
ja X1 , 2 =
= 3
·
nein ? Keineps -
f(x) =
-
1 .
(2) = auxe o .
ausrechnen
an
ode
.
PS
Symmetrie ?
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