Mark (√) against the correct answer in the following:
What is the angle which the vector makes with the z-axis?
Given vector is
Property: for the vector , Direction cosines dc’s are
Therefore the dc’s of the given vector is
=
=
=
Let the angle made by the vector with the Z axis be γ.
we got that the cosine of the angle γ is
⇒
⇒
⇒ γ=