- #1
phrygian
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Homework Statement
If x = yz and y = 2sin(y+z), find dx/dy and d^2x/dy^2
Homework Equations
The Attempt at a Solution
I am beyond confused at how to even start this one, the problem is not like any of the examples in my book.
I know x = ydz + zdy but don't know how to deal with z and dz?
Thanks for the help