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#1 |
FFR Player
Join Date: Oct 2020
Age: 19
Posts: 3
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![]() what's the square root of 5
I got 2.92401774 and idk help |
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#2 |
The Dominator
![]() ![]() Join Date: Sep 2005
Location: North Bay, ON
Age: 31
Posts: 8,907
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![]() the square root of 69 is 8.some
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#3 |
FFR Veteran
![]() Join Date: Jul 2016
Posts: 57
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![]() We can linearize the sqrt(x) at x = 4 to get the line y - 2 = 1/4(x - 4)
by plugging in 5 to this line we get y - 2 = 1/4(5-4) which simplifies to y = 1/4 + 2 therefore sqrt(5) is about 2.25, however this is an overestimate since sqrt(x) is concave down for the entire interval for which it is defined. Or just plug it into a calculator and get 2.2360679775... |
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#4 |
( ゚д゚)彡
![]() ![]() Join Date: Apr 2006
Posts: 647
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![]() yes
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#5 |
they / xe
![]() Join Date: Nov 2008
Posts: 719
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![]() sqrt(5) = 2 + 1/(2 + sqrt(5)), hope this helps
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#6 |
FFR & TWG Player
![]() ![]() Join Date: Jul 2005
Posts: 4,196
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![]() That moment when you realize a square root is the same as ^(1/2).
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#7 |
D6 FFR Legacy Player
![]() Join Date: Aug 2020
Age: 29
Posts: 120
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![]() 2*phi - 1 where phi is the golden ratio
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#8 |
local idiot
![]() Join Date: Jan 2018
Age: 18
Posts: 67
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#9 |
![]() ![]() ![]() ![]() Join Date: Nov 2017
Location: Pacific Timezone, USA Age: 19.2
Posts: 360
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![]()
Phi is such an insane number!!
Did you guys know that phi^2 = phi + 1 and phi^-1 = phi - 1
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#10 | |
they / xe
![]() Join Date: Nov 2008
Posts: 719
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![]() Quote:
This is a fun little trick.
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#11 |
ᅠ
![]() ![]() ![]() Join Date: Aug 2008
Posts: 3,585
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![]() AMZN 3200C 2022
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#12 |
FFR Player
Join Date: Oct 2020
Age: 19
Posts: 3
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![]() figured out I'm terribly wrong
2.92401774 to the third power is apparently 25 though |
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#13 |
![]() ![]() ![]() ![]() Join Date: Nov 2017
Location: Pacific Timezone, USA Age: 19.2
Posts: 360
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![]() Hmmm looks like you took the cube root of 5 squared then
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#14 |
D7 Elite Keymasher
![]() ![]() Join Date: Feb 2011
Age: 26
Posts: 3,293
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![]() please keep us updated
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