Post by Gary on Sept 1, 2017 1:19:09 GMT
Vasco,
After several days of trying Ch 8, Ex 2 with no success, I took a look at your answer. It appears that the key to your solution was the decision to convert sine and cosine to their series. That allowed $\phi$ to be defined in terms of DP, with the given value $\frac{1}{2}\hspace{.3em}\Delta\hspace{.3em}\sec(\theta)$. I wonder how you knew that a series was needed. Were you aware that you needed an $A_C$ defined in terms of $\phi$ as in (2)? I found that I always came back to the necessity to use $\phi$, and I defined it in terms of $DP$, but I had nothing good in which to substitute it.
Gary
After several days of trying Ch 8, Ex 2 with no success, I took a look at your answer. It appears that the key to your solution was the decision to convert sine and cosine to their series. That allowed $\phi$ to be defined in terms of DP, with the given value $\frac{1}{2}\hspace{.3em}\Delta\hspace{.3em}\sec(\theta)$. I wonder how you knew that a series was needed. Were you aware that you needed an $A_C$ defined in terms of $\phi$ as in (2)? I found that I always came back to the necessity to use $\phi$, and I defined it in terms of $DP$, but I had nothing good in which to substitute it.
Gary
