Question 1111631
<font face="Times New Roman" size="+2">


Hint:  *[tex \Large \sec\,t\ =\ \frac{1}{\cos\,t}]


So *[tex \Large \sec\,t\ =\ 1\ \Rightarrow\ \frac{1}{\cos\,t}\ =\ 1\ \Rightarrow\ \cos\,t\ =\ 1].


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

</font>