tktkktt.py

Created by acrozak02

Created on March 23, 2021

674 Bytes

# Type your text here

volume tetraede IJKF

aire ijk :1/2b*h=1/2IJ*IK

IJ+=racine IK+=racine

Aijk=..

Comme M est le projeté de F sur IJK 
alors FM est la hauteur de tetrahede 
ijkf relative a la force ijk
donc Vijkf=1/3*Aijk*FM

spehere :IR>r pas d'inersection
IR=r le plan est tangent a la spehre
au point H 
Ir<r le plan est secant a la sphere
selon un cercle de centre H 
et de rayon R tel que R^2=r^2-IH^2

montrer qu'un point M (x;y;z)
appartient a la sphere D si et seulement
si :....
IM=r
IM^2=r^2

montrer que la droite D coupe la 
sphere en deux points distinct
 IJ=..<6(longueur rayon sphere )donc 
 tout les droites contenant J coupe
 2 points.

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