x^-1 +y^-1 = pi^-1
How do I differentiate this? dy/dx should be -(y^2)/x^2.
Hello, Stuck Man!
Yes . . . but it can be further simplified.
We have: . .[1]
From the original equation: .
. . we have: .
Substitute into [1]: .
This is something to watch for . . .
Quite often, the second derivative contains part (or all) of the original equation.