Physics
posted by Ismail .
Check whether the 3 vectors ar coplanar or not
A= t+j+k , B= i+3j+k , C= 2i+2j+2k

Physics 
Arora
If three vectors are coplanar, their scalar triple product is zero. Give it a go, and someone will check your work :)

Physics 
Damon
I assume you mean A = i+j+k
Is A X B in the same direction as A X C?
You can work it out but by inspection you can see that vector A is the same direction as vector C and therefore, A and B (or C and B) define a plane. 
Physics 
Ismail
No it's A = t+j+k

Physics 
Damon
well, we know they are coplanar if t = 1
not if not 
Physics 
Ismail
Thanks .. thats what i was doubtful about !!!

Physics 
Damon
well it is very difficult for A to be perpendicular to both B and C otherwise
because j + k and 3 j+k just do not work :)
Respond to this Question
Similar Questions

MathsVectors Help!
Please can you help me as I have just been introduced to your Help Forum: Determine whether the vectors u, v and w given below are linearly independent or dependent where u, v and w are noncolliner vectors such that u=2a3b+c , v=3a5b+2c … 
Math: Vectors  Collinear
Can you please check whether my answers are correct? 
Math
Prove that vectors u, v and w are coplanar if and only if vectors u, v and w are linearly dependent. 
vectors
Determine whether each statement is true or false. Provide a brief justification. a. Two lines with parallel direction vectors willnot intersect. b. Two linesthat are perpendicularin R3 willhave perpendicular direction vectors. c. … 
physics
Can you help me with this one also? I know how to do it with 3 vectors but I can't seem to draw it with 4 vectors. The magnitudes of the four displacement vectors shown in the drawing are A=16.0 m, B=11.0 m, C=12.0 m, and D=26.0 m. 
homework check
which if the following statements is false? 
Calculus
Find the inner product of vectors a and b if a = (3, 0, –1) and b = (4, –2, 5,) and state whether the vectors are perpendicular. Find the inner product of vectors a and b if a=(4,2,2) and b= (7,2,4) , and state whether the … 
Physics
Difference between parallel coplanar forces and non parallel coplanar forces 
Please Help asap for math
Given the following: vector u= [2,1,2] and vector v=[1,1,4] and vector w= [4,3,2] find: a)theta, the angle between vectors, u and w. b)Are the vectors, u, v, and w coplanar? 
Physics
Please help me with this its very hard to visualize the problem. The analytical method of adding vectors expressed in terms of their components may be applied to vectors in three dimensions, for which graphical work is inconvenient. …