00:01
Since there's six problems, i'm going to just jump into what to look for and then kind of just jump into the answer.
00:08
Now the directions even tell you like on number one to do either inverse sign, cosine, or tangent.
00:14
And the reason why the first one is inverse sign to find the angles is because if you look at the picture, it's not a very good picture because it's supposed to be a right angle.
00:26
But right here's x degrees.
00:28
Here's your right angle.
00:30
The 15 and the 24 will look closely at where they're located is across from the right angle is always the hypotenuse that's what h stands for and across from the angle is the opposite side that's what the o stands for to do inverse sign and just do 15 over 24 and the other thing in your calculator is to make sure you're in degree mode which mine is not so i need to change it real quick but then from there you just hit inverse sign 15 divided by 24 close your parentheses and you get 38 .68 it says nearest 10th so i'm going to bump that up to 38 .7 degrees so again what are you looking for on number two is the what you're given with your right angle is the hypotenuse and now the angles on this side and notice it's not the opposite over here it's the adjacent side just pointing that out that you have 8 and 11 on the adjacent and the hypotenuse so that's the kuh to do the inverse cosine of 8 over 11 again in degree mode type that in second cosine 8 divided by 11 and i got 43 .3 for number 2 so again i'm going to go a little bit faster i'm already pretty well into this video.
02:06
If you look at number three, you've got the inverse tangent because it's opposite and adjacent.
02:13
Let me just get all these down.
02:15
The opposite being 20, the adjacent being 37.
02:18
And again, i know that from toa and sokatoa.
02:22
I'll get the answer in a second.
02:24
Number four is adjacent over hypotenuse.
02:28
So that's inverse cosine.
02:30
The adjacent is 18...