If the two directional cosiness of a vectors are `(1)/sqrt(2)` and `(1)/sqrt(3)` then the value of third directional consine is

If the direction cosines of a line are 1/sqrt(3), 1/(2sqrt(2)), k , then the value of 48k=

The direction cosines of a vector hati+hatj+sqrt(2) hatk are:-

The direction cosines of a vector hati+hatj+ sqrt2hatk are

Find the directional consines of vector (5hati+2hatj+6hatk) . Also write the value of sum of squares of directional cosines of this vector.

Can the direction cosines of a line be 1/sqrt2 , 1/sqrt2, 1/sqrt2 ?

If (1)/(sqrt(2)),(1)/(2) , n are the direction consines of a line, then n =

Direction cosine of a line is 1/sqrt(2), 1/2, n then the value of n is :