If `a, b,c` are three mutually perpendicular vectors of equal magnitude, then the angle `theta` which `a+ b+ c` makes with any one of three given vectors, is given by

If vec a, vec b, vec c are three mutually perpendicular vectors of equal magnitude, then the angle theta which vec a + vec b + vec c makes with any one of three given vectors is given by

If a,b,c are mutually perpendicular unit vectors then |a+b+c|=

If vec a, vec b, vec c are any three mutually perpendicular vectors of equal magnitude a, then |vec a+ vec b+ vec c| is equal to

If bar a, barb, barc are three mutually perpendicular vectors of equal magnitude, then the angle made by bar a+barb+barc with each of bar a, barb, barc is

If a, b and c are mutually perpendicular vectors of the same magnitude, then the cosine of the angle between a and a +b+c is