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frasifrasi
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Linear algebra--how do I know if something is invertible?
Say I have a "reflection about the line y = x/3 in R^2," how do I know if the function or "T" is invertible?
Thank you.
Say I have a "reflection about the line y = x/3 in R^2," how do I know if the function or "T" is invertible?
Thank you.