[" Vectors "3vec a-5vec b" and "2vec a+vec b" are mutually "],[" perpendicular.If "vec a+4vec b" and "vec b-vec a" are also "],[" mutually perpendicular,then the cosine of the "],[" angle between "vec a" and "vec b" is "]

Vectors 3vec a-5vec b and2vec a+vec b are mutually perpendicular.If vec a+4vec band vec b-vec a are also mutually perpendicular,then the cosine of the angel between aandb is a.(19)/(5sqrt(43)) b.(19)/(3sqrt(43)) c.(19)/(2sqrt(45)) d.(19)/(6sqrt(43))

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

If vec a,vec b, and vec c are mutually perpendicular vectors of equal magnitudes,then find the angle between vectors vec a and vec a+vec b+vec c

If vec a,vec b,vec c are mutually perpendicular unit vectors,find |2vec a+vec b+vec c|

If vec a , vec b , vec c are mutually perpendicular unit vectors, find |2 vec a+ vec b+ vec c|dot

If vec a , vec b , vec c are mutually perpendicular unit vectors, find |2 vec a+ vec b+ vec c|dot

If vec a , vec b , and vec c are mutually perpendicular vectors of equal magnitudes, then find the angle between vectors vec a and vec a+ vec b+ vec c dot

If vec a , vec b , and vec c are mutually perpendicular vectors of equal magnitudes, then find the angle between vectors vec a and vec a+ vec b+ vec c dot

If vec a , vec b , and vec c are mutually perpendicular vectors of equal magnitudes, then find the angle between vectors vec a and vec a+ vec b+ vec c dot

If vec a and vec b and vec c are mutually perpendicular unit vectors,write the value of |vec a+vec b+vec c|