WEBVTT
1
00:00:03.540 --> 00:00:08.490 A:middle L:90%
Okay, so we're asked to write an equation.
2
00:00:08.500 --> 00:00:13.199 A:middle L:90%
Why Her phone? Uh, the coefficient terms.
3
00:00:13.210 --> 00:00:16.660 A:middle L:90%
Why? This is a co sign of the ex
4
00:00:16.660 --> 00:00:20.519 A:middle L:90%
minister. Okay, so we know aids the amplitude
5
00:00:20.519 --> 00:00:23.559 A:middle L:90%
, right? So it passes to and it's a
6
00:00:23.559 --> 00:00:26.690 A:middle L:90%
little hard lesson for So let's say it's approximately three
7
00:00:27.640 --> 00:00:31.089 A:middle L:90%
. So since the attitude is always absolute value of
8
00:00:31.100 --> 00:00:34.060 A:middle L:90%
a, um so if we had absolute value of
9
00:00:34.070 --> 00:00:37.950 A:middle L:90%
A, that could be either plus minus three.
10
00:00:48.289 --> 00:00:52.509 A:middle L:90%
Okay, Now, for part B for another party
11
00:00:52.939 --> 00:00:56.200 A:middle L:90%
, I'm looking for BEA, which is our period
12
00:00:56.469 --> 00:00:59.179 A:middle L:90%
. What a period of coastline is two pi over
13
00:00:59.189 --> 00:01:03.439 A:middle L:90%
feet. And from the looks of this, our
14
00:01:03.439 --> 00:01:07.180 A:middle L:90%
period is almost for pie. So it's this secret
15
00:01:07.189 --> 00:01:11.549 A:middle L:90%
for pipe. This offer B B would equal 1/2
16
00:01:11.540 --> 00:01:18.980 A:middle L:90%
an important part me our original coast autograph. But
17
00:01:18.980 --> 00:01:22.019 A:middle L:90%
it looks like a sign right coast. I'm usually
18
00:01:22.019 --> 00:01:26.319 A:middle L:90%
starts, uh, like over here somewhere. So
19
00:01:26.319 --> 00:01:29.849 A:middle L:90%
it seems like they shifted it by prior to it
20
00:01:29.900 --> 00:01:32.299 A:middle L:90%
. See if you could fire every cube, make
21
00:01:32.319 --> 00:01:34.019 A:middle L:90%
a good positive. Great. So our equation is
22
00:01:34.030 --> 00:01:38.680 A:middle L:90%
why he could, too. A 123 co sign
23
00:01:40.140 --> 00:01:42.590 A:middle L:90%
B, which is 1/2 X minus five bridges