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/sci/ - Science & Math

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>> No.9667141 [View]
File: 13 KB, 644x409, mth.png [View same] [iqdb] [saucenao] [google]
9667141

This must be an easy one but I'm stupid.

How do I invert the function f(x)=x/|x| ?

Wolfram gives me pic related.

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