Guest

If a,b,c are three unit vectors such that a×(b×c)=(1/2)×b then b is not parallel to c , find angle between a and b

If a,b,c are three unit vectors such that a×(b×c)=(1/2)×b then b is not parallel to c , find angle between  a and b

Grade:12th pass

1 Answers

Arun
25758 Points
4 years ago
Dear Ajay
 
a X (b X c) = (a.c) b – (a.b)c
 
but a.b = 0
 
hence
 
angle between a and b is 90 degree
 
Regards
Arun

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free