Math Help - Elasticity of demand help

1. Elasticity of demand help

Find the elasticity of demand at the price with the demand of .

This is what i get (285(3)^(1/2))/(9(190)^(1/2)(190/3)^(1/2)) = .5

p= 3
x= (190/3)^(1/2)
dx/dp= (-190)/(9(2x)) and then plug in the x.

What is the correct way how to do this? I know the formula is p/x * dx/dp

2. Originally Posted by everlasting
Find the elasticity of demand at the price with the demand of .

This is what i get (285(3)^(1/2))/(9(190)^(1/2)(190/3)^(1/2)) = .5

p= 3
x= (190/3)^(1/2)
dx/dp= (-190)/(9(2x)) and then plug in the x.

What is the correct way how to do this? I know the formula is p/x * dx/dp
If you expect to get help in the Calculus subforum then you need to define technical terms such as "elasticity of demand" in terms of the given functions.

3. it is $\frac{p}{x} * {dx}/{dp}$
still learning how to post in La tex...

No help from anyone again, solved it myself.