Let a, b, c, d be 4 unit vectors such that each is inclined at angle x with the other.

[a b c] =
(a) 3/3 root3
(b) 4/root 3
(c) 4/3
(d) 2/3 root3

Question

Let a, b, c, d be 4 unit vectors such that each is inclined at angle x with the other.

[a b c] = 
(a) 3/3 root3
(b) 4/root 3
(c) 4/3
(d) 2/3 root3

vishweshshrimali5 · Answer

Can u help me quarkine ?

vishweshshrimali5 · Answer

??

anonymous · Answer

will try...wait for a lil while...m doing another questn rit now :(..

vishweshshrimali5 · Answer

its okay

anonymous · Answer

That means that each vector is perpendicular to each other right?

vishweshshrimali5 · Answer

No Romero we have found that angle between them is 109.5 degrees

vishweshshrimali5 · Answer

They do not lie in a single plane

anonymous · Answer

[a b c] what does that represent? A matrix?

vishweshshrimali5 · Answer

I don't know

anonymous · Answer

i thought but my solution will be very lengthy..also i forgot the formula so i guess i can only give u the idea...
take i as one vector and take another unit vectr in xy plane making 109.5 with it...cross them to get one perpendicular to them....find the third using the two unit vectors and the fact that it makes 109.5 with each of them...dot it with the earlier found perpendicular..

vishweshshrimali5 · Answer

Can u please calculate and tell the answer I will work out with the answer....

anonymous · Answer

i forgot the formula of vectors and 3d...it will take a long while if i go to revise them..all i can do is to help you with the way to solve it..

vishweshshrimali5 · Answer

Thanks for that also....