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# Questions

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6
2
388
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### $f^3,f^2$ are the cube and quadratic of f respectively and both infinite differentiable on $R$,how to show so is $f$

apr 17 at 17:53 katz 1,264112

0
0
69
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### solvablity for some polynomial

mar 16 at 7:27 bo.gu 1014

0
2
208
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### a problem about field extension [closed]

nov 23 at 10:06 J. H. S. 2,4151231

3
1
216
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### How to partition a quadrilateral into a finite number of equal-area triangles

aug 20 at 3:51 Andres Caicedo 14.4k14279

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