at (2,3,-4) express the unit vector z in spherical terms.(adsbygoogle = window.adsbygoogle || []).push({});

express the unit vector r in rectangular terms.

for the first part, would it just be (1,X,0)

fi should be zero because thats the angle the line makes with the z axis, and since this is going to be parallel to the z-axis this should be zero and theta shouldnt matter. and the unit vector r should just be the point made into a vector right? since the unit vector r is pointing away from the origin. so at (2,3,-4) its going to be in the direction of (2,3,-4).

should it have a different magnitude?

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# Homework Help: Coordinate problem

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