mathgeo.py

Created by bouillinromain

Created on May 02, 2023

705 Bytes

# Type your text here
soient a et b deux point
d une droite d du plan.
on appelle v directeur
de d tt vecteur u colineaire
aux vecteur ab

u=moin b a
equation cartesienne de u=
ax plus bx plus c = 0
pour que n soit vecteur
normal a d faut que
n.u=0

Si tu as un point tu fait
n.am=0
a(x moin xa) plus b(y moin ya)=0
= ax moin axa plus bx moin bya=0
=ax plus bx moin axa moin bya=0
= ax plus by plus c=0 ou c =
(moin axa moin bxa)

dans cercle centre = deta
r = rayon

(x moin xdeta)carre plus
(y moin ydeta)carre = r carre

ex:
  (x moin(moin 1))carre plus
  (y moin 6)carre = racine de5carre
  (x plus 1)carre plus 
  (y moin 6)carre = 5
  xcarre plus y carre plus 2x
  moin 12y plus 32 =0

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