vector unit problem

[jlee-2]

I could success to express theta look like "range variable"

But I can't get "alpa"

I guess the reason why I can't get values is due to "beta"

I got error. error said me that the unit is not compatible.

so I don't know which is wrong.

[Werner_E · Accepted solution]

I don't get the impression that you know what you are doing in your sheet and I am aboluetly not sure if you know what you want to do.