Answer:
I'm not sure what you are looking for but I'm assuming you are finding r.
r is equal to 4.
Step-by-step explanation:
6 = r + 2
In order to find r, you have to subtract 2 from 6.
So, r = 6 - 2 = 4
20 is angle PXS and idk about 19 :)
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is 
Step-by-step explanation:
From the question we are told that

given that y(0) = 0
We have that

=> 
This means that

We also given that
![y[\frac{\pi}{6} ] = 5](https://tex.z-dn.net/?f=y%5B%5Cfrac%7B%5Cpi%7D%7B6%7D%20%5D%20%3D%20%205)
So

=> 
Hence
