OX, OY OZ , . .
- , ( ) , , , . , ( ), . . () . OY - , ( ) , , , , .
OZ - , , . OY OZ .
.
XYZ
, X , Y X XOY , , , , . Z X Y . : - , Y - , OZa - .
XYZ , . ( ) - OXYZ , .
XYZ __________________________ _________________________
XYZ ______________________________________________________________________________________
XYZ ___________________________________________________________
OXsYsZs __________________________________________________________
OXpYpZp _________________________________________________________
CXmYmZm (OXmYmZm) ___________ ___________________________________
1. ?
2. ?
3. ?
4. ?
5. ?
6. ?
7. , , ?