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The points (0,-1,-1), (-4,4,4),(4,5,1) and (3,9,4) are (A) Collinear (B) Coplanar (C) Forming a square (D) None of these Could you please explain using cartesian method of solving as we havent been taught vectors yet.

The points (0,-1,-1), (-4,4,4),(4,5,1) and (3,9,4) are
(A) Collinear
(B) Coplanar
(C) Forming a square
(D) None of these
 
Could you please explain using cartesian method of solving as we havent been taught vectors yet.

Grade:11

4 Answers

Vikas TU
14149 Points
9 years ago
Let  A (0,-1,-1), B (-4,4,4), C(4,5,1) and D(3,9,4) .
find AB AC and AD
then [AB AC AD] {box of}
if it is 0 then they are coplanar otherwise not.
 
Plz Approve!
Vikas TU
14149 Points
9 years ago
Let  A (0,-1,-1), B (-4,4,4), C(4,5,1) and D(3,9,4) .
find AB AC and AD
then [AB AC AD] {box of}
if it is 0 then they are coplanar otherwise not.
 
Plz Approve!
Vikas TU
14149 Points
9 years ago
Let  A (0,-1,-1), B (-4,4,4), C(4,5,1) and D(3,9,4) .
find AB AC and AD
then [AB AC AD] {box of}
if it is 0 then they are coplanar otherwise not.
 
Plz Approve!
Vikas TU
14149 Points
9 years ago
Let  A (0,-1,-1), B (-4,4,4), C(4,5,1) and D(3,9,4) .
find AB AC and AD
then [AB AC AD] {box of}
if it is 0 then they are coplanar otherwise not.
 
Plz Approve!

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