implicit differentiation help

bassprosox

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Mar 25, 2010
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ive been trying to figure out how to differentiate x(e^z)+z(e^y)=x+y in terms of x and y to find dz/dx?
anyone know where to go with this? Thanks
 
\(\displaystyle x(e^z)+z(e^y)=x+y\) in terms of x and y to find dz/dx

\(\displaystyle e^z + xe^z+e^yz' = 1\)

Just differentiate both x and z similar to if they were all the same variable. Make sure when you take the derivative of z that you put z', since z is a function.

Solve for z'
 
\(\displaystyle JuicyBurger, \ shouldn't \ that \ be:\)

\(\displaystyle e^{z}+xe^{z}z'+e^{y}z'=1\)

\(\displaystyle Then \ \frac{dz}{dx} \ = \ -\frac{e^{z}-1}{xe^{z}+e^{y}}.\)
 
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