Which of the following transform as components of a 2d vector?

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SUMMARY

The discussion focuses on identifying which pairs of quantities transform as components of a two-dimensional vector under axis rotations. The pairs analyzed include (x2, -x1), (x2, x1), and ((x1)^2, (x2)^2). The transformation L((x1, x2)) = (x2, -x1) corresponds to a rotation by an angle of 90 degrees, confirming that option (a) transforms correctly as a vector. Options (b) and (c) do not satisfy the transformation criteria for two-dimensional vectors.

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Homework Statement




which of the following pairs of quantities transform under rotations of the axes as the components of a two-dimensional vector?
a) (x2, -x1)
b) (x2,x1)
c) ((x1)^2,(x2)^2)

Homework Equations





The Attempt at a Solution


Dont know where to start. i'd appreciate just a little guidance :)
 
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I'm not quite sure what you mean by that. If you mean does the transformation L((x1,x2))=(x2,-x1) (for a)) correspond to a rotation by some angle theta, look at the formula in your other post and see if it corresponds to some value of theta.
 

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