Question 1043925
<font face="Times New Roman" size="+2">


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ A(t)\ =\ 4t]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ r(A)\ =\ \sqrt{\frac{A}{\pi}}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ r(t)\ =\ \frac{2\sqrt{t}}{\sqrt{\pi}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ r'(t)\ =\ \frac{dr}{dt}\ =\ \frac{1}{sqrt{t\pi}]


a) evaluate *[tex \Large r(16)]


b) evaluate *[tex \Large r'(16)]


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>