If a and b are unit vectors such that `|a xx b| = a.b`, then `|a + b|^(2)` =

If vec a and vec b are unit vectors such that |vec a xx vec b| = vec a . vec b , then |vec a + vec b|^(2) =

If |a xx b| = |a.b| then (a,b) =

If 'a' and 'b' are unit vectors and |a+b|=1 , then |a-b| is equal to

If a, b, c are three unit vectors such that a + b + c = 0 , then a.b + b.c + c.a is equal to

If a, b and c are unit vectors such that a+2b+2c=0," then "abs(a times c) is equal to

If a and b are two unit vectors such that a + b is also a unit vector, then |a-b|^(2)=