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Marcks Thomas

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196 reputation
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visits member for 1 year, 1 month
seen 8 hours ago
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196 reputation
 bio website visits member for 1 year, 1 month
4 badges
 location seen 8 hours ago
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6 Favorites

added views newest activity votes
12
38
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12
answers
2
kviews

How can I introduce complex numbers to precalculus students?

algebra-precalculus complex-numbers education teaching
feb 22 at 4:39 Eric♦ 33.2k
13
29
votes
4
answers
1
kviews

Run away from lions in a cage

optimization proof-strategy
oct 10 at 9:09 Alan Gee 116
7
20
votes
6
answers
719
views

Why do new rules cause students to forget and misapply older rules?

education
nov 22 at 21:52 Hurkyl 21.5k
8
17
votes
2
answers
312
views

5 moving points in plane, one goes to infinity

combinatorics combinatorial-geometry
sep 18 at 11:52 Feanor 2,865
3
7
votes
2
answers
325
views

How can one prove that $\pi^4 + \pi^5 < e^6$?

inequality
sep 19 at 9:18 ivan 878
1
4
votes
3
answers
179
views

How to obtain an approximate expression for $\sqrt{\varepsilon}$ where $\varepsilon \ll 1$?

approximation mental-arithmetic
oct 10 at 18:31 Rick Decker 3,246
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