3D vector question. (1 Viewer)

[kractus]

I've tried to brute force it by distance formula, properties of a parallelogram and finding each point separately and got no success. Would there be a more elegant way of solving this question? Thanks

 

[jimmysmith560]

Would the following working help?

 

[synthesisFR]

Is this question just wierd?
Usually you would think there is only one point because the parallelogram has to go ABCD in order, not ACBD or smth.

 

[clbaker]

Is this question just wierd?
Usually you would think there is only one point because the parallelogram has to go ABCD in order, not ACBD or smth.

At what point did they label the parallelogram ABCD?

 

[synthesisFR]

At what point did they label the parallelogram ABCD?

I know they didn't take it in order which is why there are 3 possibilies : p
Im just saying by convention its always in alphabetical order

 

[clbaker]

I know they didn't take it in order which is why there are 3 possibilies : p
Im just saying by convention its always in alphabetical order

If they had stated ABCD then yes

 

[s97127]

my answer is D(-10,-1,3). Is that correct?