If a.b = a.c, `a xx b = a xx c` then

If a xx b = c xx d, a xx c = b xx d then

If a xx b = b xx c != 0 , then a + c =

If (a xx b) xx c = a xx (b xx c) . Where a,b and c are any three vectors such that a.b != 0, b. c != 0 then a and c are

If a xx b=c xx d and a xx c=b xx d, then vectors a-d and b-c will be

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