Rappel Mathématique

10110−1
10210−2
10310−3
10610−6µ
10910−9
ρ kg.m−3kg
m3
` kg.m.s−2=N
m×m=m2N.m−2=P a
m×m×m=m3N.m =J
m.s−1m
sJ.s−1=W
m.s−2m
s2
m
m=rad
→ ×
c2=a2+b2
sin θ= = a
c
cos θ= = b
c
tan θ= = sin θ
cos θ=a b
◦
sin β
a=sin γ b=sin α c
π= 180◦

−→
a
−→
v=−20−→ ım
s
•20m
s
k−→ vk
•−→ ı
• −−→ ı
a=qa2
x+a2 y+a2 z
−→
u=−→
a
a([x1, y1, z1])
•−→ a·−→ b=ab cos φ
•φ−→ a−→ b
•
•
◦
◦cos φ > 0
◦cos φ < 0
•([x1, y1, z1],[x2, y2, z2])
•−→ a×−→ b=−→ c
◦cx=ay·bz−az·by
◦cy=az·bx−ax·bz
◦cz=ax·by−ay·bx
•c=ab sin φ
•φ−→ a−→ b
•
•([x1, y1, z1],[x2, y2, z2])