The vector `cosalpha\ cosbeta hat i+cosalpha\ sinbeta hat j+sinalpha hat k` is a a.null vector b. unit vector c. constant vector d. none of these

let vec a= ( hat i+ hat j+ hat k) then find the unit vector along this vector

Find the resultant of vectors vec a= hat i- hat j+2 hat k and vec b= hat i+2 hat j-4 hat kdot Find the unit vector in the direction of the resultant vector.

Unit vector along the vector hat(i) + hat(j) + hat(k) is

Write the projection of the vector hat i- hat j on the vector hat i+ hat j

If vec a=6hat(i)+7hat(j)+7hat(k) , find the unit vector along with this vector

For given vectors, -> a=2 hat i- hat j+2 hat k and -> b=- hat i+ hat j- hat k find the unit vector in the direction of the vector -> a+ -> b .

For given vector, vec a = 2 hat i j +2 hat k and vec b = - hat i + hat j - hat k , find the unit vector in the direction of the vector vec a + vec b .

The scalar product of the vector vec a= hat i+ hat j+ hat k with a unit vector along the sum of the vectors vec b=2 hat i+4 hat j-5 hat k\ a n d\ vec c=lambda hat i+2 hat j+3 hat k is equal to 1. Find the value of lambda and hence find the unit vector along vec b+ vec cdot

overset(rarr)A is a vector which when added to the resultant of vectors (2 hat I - 3 hat j + 4 hat k) and (hat i+5 hat j +2 hat k) yields a unit vector along the y axis then vector overset(rarr)A is :

Find the projection of the vector hat i- hat j on the vector hat i+ hat j