+0  
 
0
79
8
avatar+44 

Simplify:

 

(20202021-20202019)/(20202020-20202019)

 Feb 1, 2021
 #1
avatar+2249 
+5

Take out 2020^2019

 

\(\frac{2020^{2019}(2020^2-1)}{2020^{2019}(2020^1-1)}\)

Erase the 2020^2019

\(\frac{2020^2-1}{2020^1-1}\)

Which is 2021

 Feb 1, 2021
 #2
avatar
+1

Why, hello there flec :omighty:

all must bow down!!!

to perfect scorer on IMO surprise

 

Anyways, we can recognize that \(2020^{2020}-2020^{2019}=2020^{2019} \cdot 2020-2020^{2019}=2020^{2019} \cdot 2019\) and then simplify the top similarly. After canceling some terms, we will be left with the answer.

Guest Feb 2, 2021
edited by Guest  Feb 2, 2021
 #3
avatar+2249 
+4

Henlo! And no, don't bow down to me, I did NOT score a perfect on the IMO, I'm not even close to qualifying to IMO!

I wonder who you are cheekyindecision

 

Nice answer, by the way!

CalTheGreat  Feb 5, 2021
 #4
avatar+7 
+1

Hi fleccy! :P

I think that's Blueclay :P it kinda makes sense that she would say that...

 Feb 5, 2021
 #5
avatar+2249 
+3

Hmmmm I vote bestzack66. But I'm still not sure.

CalTheGreat  Feb 5, 2021
 #6
avatar
0

sup flec

uhhh i usually dont use this website

but i tried to answer a couple peoples questions

 

do you know who i am

Guest Feb 7, 2021
 #7
avatar
0

im 99% sure that second guest isnt bestzack66

Guest Feb 7, 2021
 #8
avatar+2249 
+2

No I don't lol

CalTheGreat  Feb 10, 2021

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