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/sci/ - Science & Math

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>> No.11892054 [View]
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11892054

Why do we split this up into two different [math] A_y[/math]? Why not just look at the interval [math]A_y = {x : r(x) \leq y} = {x : x^2 \leq y} \rightarrow [-\sqrt{y},\sqrt{y}] [/math]?

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