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Zusammenfassung Vektorrechnung

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Ebenen, Lagebeziehungen, Skalar-Produkt

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MITTELPUNKT MEINER STRECKE LINEARKOMBINATION
WINKEL EWISCHEN VEKTOREN
m z.(â 5)
=
+
7
s.a t.5 +




(si) (=),
=

-
mit site


di
I
coscas
-
M+ -
AX xB ⑤

↑
⑨ B
↳

:Till
2.
a



5
S. t.5 +




LANGE EINES VEKTORS SKALAR-MULTIPLIKATION c
=


cos
(x) 69,0
=




(aT
(())=m
=


tas s.â
s.(a) (),
=



=
mit se
7
- 7

a 7



S = alle Zahlen, mit denen s

gerech-
Creans>1)S,o
in der Schule
w i rd
net VEKTORADDITION

PARALLELITAT PRUFEN a 5
+



(a) (i) ()
=
+ =




II, =K.


VEKTORCHNUNG Se
&


wenn
gilt, dass
*
n i c h td i e
denn k verändert

Vektors,
Ausrichtung d e s
nur d i e
Länge




Bsp.â (*): 5(äs
=
2 -




-3
-

---2

->
all, da.1,5 5 = 4
-- 1

I I < SKALARPRODUKT asina vécorna
S 2 3 y
orthogonal zueinander
i
Vektor Zahl"
-2 1
Vektor man
gleich
-
-




-3
- 2
--




x
--
3 (a) (i) amb.+
= an.butas.bs



A BInD
*
DIFFERENZVEKTOR VON A
NACH B .(0) 2.4 3.0 ( 1.2 6
= + +
=




3-
---blbulbus
A(an(az)az)
a

#B 5 =
-
a Ho B(21314)
+
-> ist
das Skalarprodukt
gleich, so stehen die Vektoren


Spitze minus Fu" im rechten Winkel zueinander! (Orthogonalität)

Dz
-




a2
â ⑤


d(AiB) r
=

A(tez
=


ac) (bs as) - + -
-B (?)-(?)
=




(i)
=




~




-> durch Formel der Trigonometrie

, GERADENGLEICHUNG ZWISCHEN PUNKTEN
VERTOR ALS


VERSCHIEBUNG
A
B B
*
-
I
PROJEKTIONEN
N
Punkt A(11213) und BildpunktA(21310)
E ZENTRAL:



↳Aneine
5â B:kelR
g:
(=ai) (85) (
a
=

r.
+


i Ax=
= = =




xL(010110)
>

L +
P(41414)
â:Orts-/Stützfaktor

&B:Richtungsvektor
R r. ;nel
g:
=
+




= k.p
g:
+




Schattenpunkt pistsxy:
E (i) k.(2) +




SPIEGELUNGEN
=




Bsp:Geradengleichung aus den Punkten A(2111-3);B(4141-5)
z 0
=
- 4 k . - 2) 0
+
=
-> k 2
=
=
(,) k()
=
+




I
Dunkt:P(21311)


(5) (z) r.(-2)
=
(i) k.((i)
Sxy(61810) bk 0 k
->
z 0
= -
10 -
= -



vorzeichen
x - +




g
= = + =


änderts i c h

xy(110) Pix,y(2131 1)
-



->
bei der KO-
ordinate,
->
Ortsvektor, Richtungsvektor sind
va r i i e r b a r & p'y,z( -21311) dessen Ebene
nicht
gespiegelt
die Gerade gleich
bleibt pix,z(21 -


311) w i rd




PUNKT DER GERADEN VEKTORRECHNUNG
z.B. K 3

SPURPUNKTE
=




i (-z) 3(i) (=-)
=
+ =




Punkte, d i e die
-

koordinatenebenen

-> also ist 4(81101-5) ein Punkt
vo n der Geraden
g LAGEBEZIEHUNGEN durchstoen


33p:
g
x
() k)3):rEi
=




abhängig (Vielfache voneinander)?
+
=




Sind die
Richtungsvektoren
(der 2. Vektor)
linear


z 0
Sxy
->
durch die
Xy
-> =




PUKTPROBE ja nein
-> 3 6k
+

0
=
-
3k =
-


E
↳
Frage:LiegtQ(61711) der Geradeng? ist Ortsvektor
Gleichungen gleichsetzen
auf d e r eine
durch d i e andere Gerade also x
(5) (2). (5) (=5)
=
+ =




darstellbar?
(2) (z) m(2) z
=
+
=




lösbar nichtl ösbar

ja nein


Schneiden
A

-> also liegtd e r Punkt Q(61711) nicht auf der
Geradeng. D A
windschief
identisch echt parallel

[2]

tri
-winaschief
e
*RECKE ZWISCHEN 2 PUNKTEN
I
- M




o
·

S I
I S I S
1




:.. I
1
I

B(41913)
⑧

A(11213)
I ⑧


⑧




=
seneRuede
AB: Oe
Ir 35 1
=

+

Ir -
35 0
=


3
Ir =




Ir 0
=




I/II 0. r + 0. s 0
=
v
# 0. r 0.5
+
12
=


Is =
-

4
Is 0
=




# I 0. r 0.5 0
=
v # 0. r 0.5 0
=




# 0. r 0.5 12
+
+ =

+




-> identisch
Schneiden sich -> windschief
-> parallel
echt ->

Document information

Study
Gymnasium
School year
4
Uploaded on
February 21, 2023
Number of pages
5
Written in
2021/2022
Type
Summary
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