Material zum Vorkurs P2 WiSe 2013/14
Material zum Vorkurs P2 WiSe 2013/14
Material zum Vorkurs P2 WiSe 2013/14
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<strong>WiSe</strong> <strong>2013</strong>/<strong>14</strong><br />
04.10.<strong>2013</strong><br />
19. Tag – Vektorrechnung in 2D<br />
Lösungen zu Vektorrechnung in 2D I<br />
diesen Winkel:<br />
)<br />
<br />
(g 1 ; g 2 : arccos<br />
)<br />
<br />
(g 1 ; g 3 : arccos<br />
)<br />
<br />
(g 1 ; g 4 : arccos<br />
)<br />
<br />
(g 1 ; g 5 : arccos<br />
)<br />
<br />
(g 1 ; g 6 : arccos<br />
)<br />
<br />
(g 2 ; g 3 : arccos<br />
)<br />
<br />
(g 2 ; g 4 : arccos<br />
)<br />
<br />
(g 2 ; g 5 : arccos<br />
[ ] [ ]<br />
1 4<br />
·<br />
0 −5<br />
[ ] ∣ [<br />
1 ∣∣∣∣ ·<br />
4<br />
∣ 0<br />
∣ −5<br />
[ ] [ ]<br />
1 1<br />
·<br />
0 1<br />
[ ] ∣ [<br />
1 ∣∣∣∣ ·<br />
1<br />
∣ 0<br />
∣ 1<br />
[ ] [ ]<br />
1 −2<br />
·<br />
0 1<br />
[ ] ∣ [<br />
1 ∣∣∣∣ ·<br />
−2<br />
∣ 0<br />
∣ 1<br />
[ ] [ ]<br />
1 1<br />
·<br />
0 5<br />
[ ] ∣ [<br />
1 ∣∣∣∣ ·<br />
1<br />
∣ 0<br />
∣ 5<br />
[ ] [ ]<br />
1 0<br />
·<br />
0 1<br />
[ ] ∣ [<br />
1 ∣∣∣∣ ·<br />
0<br />
∣ 0<br />
∣ 1<br />
( 4<br />
] ∣ = arccos<br />
∣∣∣∣<br />
( ) 1√2<br />
] ∣ = arccos<br />
∣∣∣∣<br />
) )<br />
√ ≈ 51,34 ◦ =⇒ <br />
(g 1 ; g 2 ≈ 51,34 ◦<br />
41<br />
)<br />
= 45 ◦ =⇒ <br />
(g 1 ; g 3 = 45 ◦<br />
] ∣ = arccos − 2 )<br />
√ ≈ 153,44 ◦ =⇒ <br />
(g 1 ; g 4<br />
∣∣∣∣ 5<br />
( 1<br />
] ∣ = arccos<br />
∣∣∣∣<br />
≈ 26,56 ◦<br />
) )<br />
√ ≈ 78,69 ◦ =⇒ <br />
(g 1 ; g 5 ≈ 78,69 ◦<br />
26<br />
] ∣ )<br />
= arccos 0 = 90 ◦ =⇒ <br />
(g 1 ; g 6<br />
∣∣∣∣<br />
= 90 ◦<br />
[ ] [ ]<br />
4 1<br />
·<br />
−5 1<br />
[ ] ∣ [ ] ∣ = arccos − 1<br />
)<br />
√ ≈ 96,34 ◦ =⇒ <br />
(g 2 ; g 3 ≈ 83,66 ◦<br />
4 ∣∣∣∣ ·<br />
1 ∣∣∣∣ 82<br />
∣ −5<br />
∣ 1<br />
[ ] [ ]<br />
4 −2<br />
·<br />
−5 1<br />
[ ] ∣ [ ] ∣ = arccos − 13<br />
)<br />
√ ≈ 155,23 ◦ =⇒ <br />
(g 2 ; g 4 ≈ 24,77 ◦<br />
4 ∣∣∣∣ ·<br />
−2 ∣∣∣∣ 205<br />
∣ −5<br />
∣ 1<br />
[ ] [ ]<br />
4 1<br />
·<br />
−5 5<br />
[ ] ∣ [ ] ∣ = arccos − 21<br />
)<br />
√ ≈ 130,03 ◦ =⇒ <br />
(g 2 ; g 5 ≈ 49,97 ◦<br />
4 ∣∣∣∣ ·<br />
1 ∣∣∣∣ 1066<br />
∣ −5<br />
∣ 5<br />
Mathematik <strong>Vorkurs</strong> <strong>P2</strong><br />
✞ ☎<br />
✝164 ✆<br />
Dipl. Math. Stefan Podworny