if `|veca|=|vecb|=|veca+vecb|=1` then `|veca-vecb|`

If |veca|=5|vecb|=4 and |veca+vecb|=1 then |veca-vecb|= ?

|veca| = |vecb| = veca = vecb .

If |veca| = |vecb|=|veca+vecb|=1 then prove that |veca-vecb|=sqrt(3) .

If |veca|=3, |vecb|=1 and |veca+vecb|=|veca-vecb| , then |veca xx vecb| is:

Let veca,vecb,vecc be the three vectors such that veca.(vecb+vecc)+vecb.(vecc+veca)+vecc.(veca+vecb)=0 and |veca|=1,|vecb|=4,|vecc|=8, then |veca+vecb+vecc| equals :

If |veca| = |vecb| = |veca + vecb| = 1 , then the value of |veca - vecb| is equal to

If |veca|=|vecb|=|veca+vecb|=1 then find the value of |veca-vecb|

If |veca|=|vecb|=|veca+vecb|=1 then find the value of |veca-vecb|

If |veca|=|vecb|=|veca+vecb|=1 then find the value of |veca-vecb|

If |veca+vecb|=|veca-vecb| show that veca_|_vecb .