Angle of Vectors with X, Y, and Z Axis

[lmf22]

vectors and angle...

How can I find the angle that a vector makes with the X, Y, or Z axis?

Example: V=24i + 12j - 20k. What angle does this vector make with x, y, and z axis?

 

[faust9]

How do you find the angle between two vectors in general?

 

[lmf22]

Do i use inverse cosine?

 

[Motifs]

Ox : (1,0,0)
Oy : (0,1,0)
Oz : (0,0,1)
V : (24,12,-20)
"Do i use inverse cosine?"
If you don't, you should use a calculator to help you find the angle, its faster. I do it all the time.

 

[lmf22]

Thank you. I got it now.