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 03-31-2021, 12:23 PM #1 Cat O Happy FFR Player     Join Date: Oct 2020 Age: 20 Posts: 3 what's the square root of 5 what's the square root of 5 I got 2.92401774 and idk help
 03-31-2021, 01:11 PM #2 Dynam0 The Dominator     Join Date: Sep 2005 Location: North Bay, ON Age: 32 Posts: 8,953 Re: what's the square root of 5 the square root of 69 is 8.some
 03-31-2021, 01:20 PM #3 sploder12 FFR Veteran     Join Date: Jul 2016 Posts: 63 Re: what's the square root of 5 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...
 03-31-2021, 01:52 PM #4 0 ( ﾟдﾟ)彡     Join Date: Apr 2006 Posts: 653 Re: what's the square root of 5 yes __________________
 03-31-2021, 03:16 PM #5 XCV they / xe     Join Date: Nov 2008 Posts: 719 Re: what's the square root of 5 sqrt(5) = 2 + 1/(2 + sqrt(5)), hope this helps __________________
 03-31-2021, 04:20 PM #6 Hakulyte meanwhile in Hakuverse     Join Date: Jul 2005 Posts: 4,204 Re: what's the square root of 5 That moment when you realize a square root is the same as ^(1/2).
 03-31-2021, 08:14 PM #7 WirryWoo Pseudo D7 Legacy Player     Join Date: Aug 2020 Age: 30 Posts: 149 Re: what's the square root of 5 2*phi - 1 where phi is the golden ratio __________________
03-31-2021, 08:42 PM   #8
BigHayden1
local idiot

Join Date: Jan 2018
Age: 18
Posts: 75
Re: what's the square root of 5

Quote:
 Originally Posted by Dynam0 the square root of 69 is 8.some
cause i been tryna work it out ohhh

04-1-2021, 02:52 AM   #9
Matthia

Join Date: Nov 2017
Location: Pacific Timezone, USA Age: 19.4
Posts: 384
Re: what's the square root of 5

Quote:
 Originally Posted by WirryWoo 2*phi - 1 where phi is the golden ratio
Phi is such an insane number!!

Did you guys know that

phi^2 = phi + 1

and

phi^-1 = phi - 1
__________________

04-1-2021, 02:02 PM   #10
XCV
they / xe

Join Date: Nov 2008
Posts: 719
Re: what's the square root of 5

Quote:
 Originally Posted by Matthia Phi is such an insane number!! Did you guys know that phi^2 = phi + 1 and phi^-1 = phi - 1

This is a fun little trick.
__________________

 04-1-2021, 06:52 PM #11 mi40 ᅠ     Join Date: Aug 2008 Posts: 3,612 Re: what's the square root of 5 AMZN 3200C 2022 __________________
 04-6-2021, 08:51 PM #12 Cat O Happy FFR Player     Join Date: Oct 2020 Age: 20 Posts: 3 Re: what's the square root of 5 figured out I'm terribly wrong 2.92401774 to the third power is apparently 25 though
 04-6-2021, 09:11 PM #13 Matthia ​     Join Date: Nov 2017 Location: Pacific Timezone, USA Age: 19.4 Posts: 384 Re: what's the square root of 5 Hmmm looks like you took the cube root of 5 squared then __________________
 04-7-2021, 11:46 AM #14 mrpreggers D7 Elite Keymasher     Join Date: Feb 2011 Age: 27 Posts: 3,294 Re: what's the square root of 5 please keep us updated __________________

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