The vector 3hati+4hatk will be projected on the y-axis. 12 | Mathematical concepts and vectors. PHYSICS ERROR...

The angle made by the vector 3hati-4hatj+5hatk with the Z-axis is

The projection of the vector hati+hatj+hatk along the vector of hatj is

A vector vec P when added to the sum of the vectors 2hati-3hatj+hatk and -3hati-hatj+hatk gives a unit vector along the x-axis. What is the magnitude of the vector vec P ?

What will be the projection of vector vecA= hati+hatj+hatk on vector vecB = hati + hatj ?

The vector that must be added to the vector hati-3hatj+2hatk and 3hati+6hatj+7hatk so that the resultant vector is a unit vector along the y-axis is

A vector is represented by 3hati+hatj+2hatk . Projection of this vector in XY plane is

What should be added in vector a=3hati+4hatj-2hatk to get its resultant a unit vector hati ?

The direction cosines of vector a=3hati+4hatj+5hatk in the direction of positive axis of X, is