Volume . . . . vectors ?
I just don´t seem to be able to get the right answer to these two so I am hoping someone here can help me.
1) I need to find the volume determined by these coordinates:
p = (2,-3,5), q = (-6,1,-1) and r = (2,0,1). The answer given is -20 which is 20.
2) Find the volume determined by:
u = (1,0,1), v = (0,2,3) and w = (3,0,-5). The answer given is -16 which is 16.
Could you please show your work so I can see where my mistakes lie.
- asimovLv 61 decade agoFavorite Answer
well you said COORDINATES
it means points
but with just 3 points you can not have any Volume
asumming you means Vektors
to find the volume of the quader spanning by this 3 Vectors
You can use Sarus methode
| a b c |
| d e f |
| g h i |
D = aei + bfg + cdh - ceg - afh - bdi
and the answer is for first one 20 and for second one 16 (you got it right)