Please help me with this its very hard to visualize the problem.

The analytical method of adding vectors expressed in terms of their components may be applied to vectors in three dimensions, for which graphical work is inconvenient. Find the magnitude of the resultant of the vectors A = l2*i- 37*j + 58*k and B = 5*i + 30*j -42*k, where i, j, and k are unit vectors along the x, y, and z axes, respectively.

1 answer

just add all the i vectors, j vectors, and k vectors up respectively

Then magnitude is:

sqrt((i^2+j^2+k^2))