Show that the points whose position vectors are 
form a right triangle.
Given Data:
= -2×3+(-1)×(-2)+1×4
= -6+2+4
Angle A right angle, ABC is right angle triangle.
23
Show that the points whose position vectors are form a right triangle.
Given Data:
= -2×3+(-1)×(-2)+1×4
= -6+2+4
Angle A right angle, ABC is right angle triangle.