Exercises on Partial Derivatives

MathematicalPhysicist

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here there are Exercises on Partial Derivatives: http://www.ualberta.ca/dept/math/gauss/fcm/calculus/multvrbl/basic/partl_drvtvs_exrcss/partl_dervtv_exrcss.htm [Broken]
can comeone please solve the first two problems (for some reason i cant read the answers).
my answers:
1. 3(3xy-4y^2)^2(3x-8y)
2. y/(x+y)^2

thanks in advance.
 
Last edited by a moderator:

Integral

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Science Advisor
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You are correct.
 
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Hooray for the University of Alberta!
 

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