Question

x=(1,2,3) Y=（0,1,1） the triangle with corners at (0,0,0), the tip of ((X*Y)/(Y*Y)) Y (with tail at (0,0,0) and the tip of X (with tail at (0,0,0)) will always give us a right triangle? Why?

Answer 1

OZ={0, 5/2, 5/2}
XZ=OZ-OX={-1, 1/2, -1/2}
OZ * OX = 0

Answer 2

thank you!

Answer 3

but when i calculate the number, oz*ox is not 0.?

Answer 4

Sorry
XZ * OZ =0

Answer 5

Misprint

Answer 6

xz *zo?

Answer 7

yes or xz*oz

Answer 8

thank you