Question 984382
<font face="Times New Roman" size="+2">


a. In order for the value of a rational function to be zero, the numerator must be equal to zero.  Set the numerator equal to zero, substitute 4 in place of *[tex \Large x] and then solve for *[tex \Large A].


b. A rational function is undefined when the denominator is zero.  Set the denominator equal to zero and solve for *[tex \Large x]


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \