! " # $"
Vecteurs dans le plan
(article construit sur une idée de M. Chauvière professeur au LEGTA de Bressuire)
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• 3 - + + ==== ' )( ' 2
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( " . 9" 6%' ( .( . "4 , 9" %$
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<
! " # $"
%3 ( * (( (!
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+. (( ). $
9 .6 + 6 %
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! " # $"
% ( * ( ' ( . ($
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* ( ( ==== ×××× B ( +0 . $
1 * ( * (( ( +0 ( + ( "2
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1 * ( * ( ( ( . ( + . "2 (
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%@ 04+ ( ( ! ( . ( 0 9 (( %' ( . ( (
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( " ' ) ( 0 ( ( ( ( " ' ) ( 0
$
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→
→
→
→
→
→
→
→++++
& - ( * ( ( + . +
( 0 2
?
! " # $"
% (- * ($
3 ( * (→→→→ →→→→
$ 0 →→→→
→++++
→
→
→ / (
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( ++ ( * ( ( →→→→
& ! →→→→
→ ++++
→
→
==== →
→
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$
%> ( , ( (( (/ ( →→→→
→++++
→
→→
>%>. + ( 0 $
% " ( ++ * ($
& ( * (( (
$
( .( ++++ ) ( $
D
! " # $"
Vecteurs dans le plan
=. " *$
6% @ ( ( +5+ $
% @ ( ( −: +5+ +5+ ( ($
:% @). .( ) ( ( ( = E $
E% > * (. *( . ($
% > * ( (.(( * ( ( ++ ( $
<% > * (' +5+ ( . *$
A% > * (' +5+ +5+ ( . *$
?% @ + ( . - (
$
D% > * (. * +5+ $
6 %> * ( . (( * (' +5+ $
66%@ ( ( → − → ( . *$
@ ( ( F>/ F> F ( ( (
.' . * G.+ ( :$
6% ( ( ( " / ( (
(9 (% . ( →
%> ( (( (!
F F
→ →
+ H →F + F >→ H →F + →
& ( 4 ' ( !
I J
F = 3 @
>
+ . (. .(( (!
6% F I F =→ →+ = %
F I→+ → =
:% →3 J+ → = E% F I F→+ → =
% → +3=→ = <%
=
→ →
− =
>
F
6
! " # $"
6%3 / ( ( (!
) (6
E ) −: ) K
%3 ( ( H ; / ( ( (!
+ ) ( − ) ;+ ) K
;
3 ( )"" ( (/ +0 / 0L ( ( + ( *" ( →6 → $
>. + )+ )0L ( ( 9)0L ( .( . %$
6
→
→
•
•
K •
•
•
K •
•
3&@ MM
