If `|vec a|= |vec b| =|vec a- vecb|` then the angle between `vec a` and `vec b` is

If vec a and vec b are vectors such that |vec a + vec b| = |vec a - vec b| , then the angle between vec a and vec b is

If vec a and vec b are non - zero vectors and |vec a+ vec b| = |vec a - vec b| , then the angle between vec a and vec b is

If |vec a - vec b| = |vec a| = |vec b| =1 then the angle between vec a and vec b is

If |vec a+vec b|=|vec a-vec b| .Prove that the angle between vec a and vec b is 90^(@) ?

Suppose vec a + vec b + vec c = 0, |vec a| = 3, |vec b| = 5, |vec c| = 7 , then the angle between vec a and vec b is

If vec a. vec b = ~ |vec a||vec b| then angle between vec a and vec b is

If vec a + vec b = vec c and | vec a | = | vec b | = | vec c | find the angle between vec a and vec b

If |vec A+vec B| = |vec A|-|vec B| , then the angle between vec A and vec B is

vec a + vec b + vec c = vec 0, | vec a | = 3, | vec b | = 5, | vec c | = 7 then angle between vec a and vec b is

If vec a and vec b are two vectors such that |vec a|=4,|vec b|=3 and vec a*vec b=6. Find the angle between vec a and vec b