00:01
All right, so for this question, we have one angle that's one angle, which is in degrees in minutes.
00:12
So big b equals 2 degrees and 45 minutes.
00:18
As a converter, i've been using the australian antarctic database.
00:22
We got 2 .75 degrees.
00:31
We also have small b.
00:33
So we can make set this b over the sign of big b equals 0 .2 over the sign of 2 .75, which is going to be 6 .2 over 0 .04793, which gives us this number, which is 129 .23.
01:19
By the law of signs, we have b over sign of big b equals c divided by the sign of big c.
01:33
That would be 5 .8 divided by the sign of big c.
01:42
We can find sign of big c by fending all this by sign of c and then dividing by dividing this.
01:53
By b over the sign of b so equals 5 .8 divided by b over the sign of b which we already calculated up top so it's going to be 5 .8 by 129 to 3 which gives us this number and then to find big c we take the arc sign of that number.
02:44
I've been using calculator soup to cut for arc sign and we get 2 .57 so on, which we can round down to 2 .57 for big c...