
51:07
Hello

51:38
Greetings from NYC!

51:38
Tucson, AZ

51:42
Aishani from Georgia

51:46
Phinally out of Philly and back in CA

51:50
Joining from NJ

51:56
Hello! I am from Los Angeles, CA and it is 96 deg outside.

51:57
Maryland

51:57
from Kuala Lumpur, Malaysia

51:59
joining from Evansville in

52:02
(USA)

52:14
NC

52:27
Michigan

52:29
Has been raining for the past like 5 days

53:31
CT

54:19
7 in the morning

55:48
maa.org/amc

01:03:32
Difference

01:03:44
z = 2

01:04:49
This is known as comparison method and it is taught in grade 4 in some countries

01:04:54
x = 1

01:05:23
y=6

01:06:13
y=2

01:06:21
Just take it three ties

01:06:24
times

01:09:01
Just use lcm

01:09:14
x=3

01:09:35
Multiply by 2 second

01:11:27
z=2, b=1

01:12:05
z=2

01:12:05
Yep -1

01:14:22
b

01:14:37
a ot b 0

01:15:23
D

01:15:48
D

01:16:41
root is positive out of two squares

01:19:26
ab=0

01:25:56
What I am trying to figure out is how to avoid abstraction as much as possible in order to draw in students who may be otherwise put off by math - that's the appeal of the area model and my interest in extending it as much as possible. Like exploding dots.

01:27:11
It's 8 am but on which day?

01:27:46
no real values

01:31:20
yea! since sine is an odd function you'd get sin(0) = sin(a) + sin(-a)

01:31:28
aka -sin(a)

01:32:53
it's no function haha

01:33:31
some shifts of 2pi

01:33:38
2pi

01:33:39
when cos(b)=1 and cos(a)=1 ?

01:35:04
with cosine it's so satisfying to look at

01:35:15
^^^

01:35:34
logarithms!

01:35:38
logs

01:35:39
logs

01:35:42
logs

01:37:37
Let a = -b

01:39:29
thank you

01:39:35
thanks

01:39:36
Thanks so much!

01:39:39
thank you very much!

01:39:42
Thanks!

01:39:43
thank you

01:39:55
Thank you for great presentation!

01:40:07
maa.org/amc

01:40:41
maa-amc.org

01:41:02
Thank you Dr. T!

01:41:06
Thank you!

01:41:11
BYe!

01:41:11
Thank you

01:41:15
Bye