demontrervecteurnormaleauplan.py

Created on March 23, 2021

449 Bytes

# Type your text here
methode 1:

plan ABG et CF
A() B() C() F() G()
CF() BG() BA()
CF.BG=xx+yy+zz=0 donc ortho
CF.BA=0 donc ortho

CF est ortho a 2 vecteurs BG et 
BA non coli du plan ABG donc CF
est un vecteur normale au plan ABG

methode 2:

dans un repere ortho A()B()et C()

AB() et AC() soit n(a,b,c)vect ortho plan abc

n.AB=0..........systeme
n.AC=0 ......

prenons b=1 ou autre n()vect normale plan abc

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