ELEMENT MATHS Flashcards
1
Q
calcul d’une pente
A
delta f / delta x = f(b) - f(a) / b-a
2
Q
taux d’accroisssement
A
taux = f(x+dx) - f(x) / dx
3
Q
developpements limoités usuels
A
sin x = tan x = x
cos x = 1 - x^2 / 2
4
Q
integral
A
I = intergal f(x) dx = primitive de b a a = F(b) - F(a)
5
Q
primitive fonction usuelles
A
K constante : Kx +C
1/ racine x : 2racine x + C
6
Q
ay’ + by = 0
A
y(x) = yo exp (-bx/a)
7
Q
ay‘ + by = c
A
y(x) = (yo - c/b) exp (-bx/a) + c/b
