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Mathematics
Phil Freedenberg's user avatar
Phil Freedenberg's user avatar
Phil Freedenberg's user avatar
Phil Freedenberg
  • Member for 5 years, 10 months
  • Last seen this week
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19
Is the approximation $\cos\frac23x \approx \frac12(1 + \cos x)$, for $x$ a first-quadrant angle, well known?
Jul 27, 2023
4
$\tan x=\frac{x}{\cos^2 x}$
Aug 9, 2022
3
prove limit of ratio of log of power series to x is 1
Mar 9, 2021
1
Looking for an algorithm for constructing sets A and B
Aug 21, 2018
1
Game of Trieze as described in "The People of the Book," by Geraldine Brooks
Aug 11, 2019
1
Solve this generalized discrete optimization problem
Dec 1, 2023
0
In Texas Holdem what is the probability that the best hand is on the table?
Jun 5
0
Game of Trieze as described in "The People of the Book," by Geraldine Brooks
Aug 14, 2019
0
Game of Trieze as described in "The People of the Book," by Geraldine Brooks
Aug 15, 2019
0
Game of Trieze as described in "The People of the Book," by Geraldine Brooks
Aug 20, 2019
Top network posts
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9
What is the "maximum power" of an antenna?
9
Does a water-filled trench protect against freezing?
7
What to study after discrete bjt amplifiers?
6
How can I restore power to a gas-fired water heater protected by a tripped GFCI outlet?
6
Inductors short at DC or does it have a voltage drop?