The vector `a, b and c` are such tha `|a|=|b| = 1 and |c|= 2` (ii) `a xx (a xx c)+ b = 0` find the possible angles between `a and c` .

If |a| = 1, |b| = 1,|c| = 2 and a xx (a xx c) + b = 0 , then (a.c)^(2)

Let veca, vecb, vec c such that |veca| = 1 , |vecb| = 1 and |vec c | = 2 and if veca xx (veca xx vec c ) + vec b = 0 then find acute angle between veca and vec c

If three vectors a,b,c are such that a !=0 and a xx b = 2 (a xx c), |a| = |c| = 1, |b| = 4 and the angle between b and c is cos^(-1) (1/4), then b - 2c = lambda a where lambda =

If a, b and c are vectors such that a .b=a .c, axx b=a xx c, a ne 0 , then show that b=c

If a,b,c are three unit vectors such that a xx (b xx c) = (1)/(2) b then the angles between a,b and a,c are

If vec(A) xx vec(B) = 0 and vec(B) xx vec(C ) = 0 , the angle between vec(A) and vec(C ) is :