Calculating errors (propagation)

[pwphysics101]

Completely new to the concept of errors and don't know how to approach this...

Calculate value and error in Z

Z= 2AB^2/C


Where
A= 100 Error in A= +/- 0.1
B= 0.1 Error in B= +/- 0.005
C= 50 Error in C= +/- 2


Plugging in the numbers Z= 0.04

How do you carry the errors over into the equation? I think the answer is suppose to look like (0.04 +/-X.XX)..

Thanks for any help..

 

[verty]

As I understand it, the error is simply the widest possible range the value of Z could have. This is all I will say.