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Homework Statement
is dx/dy= x/y
if yes can i use it always
Homework Equations
for example in a circle
dA/dtheta=A/360
The Attempt at a Solution
if its right sometimes what are the conditions of using it
And it is quite easy to find counter-examples. For example, let ##y = x^2##. Then ##dy/dx = 2x \neq y/x = x##.Generally, no it is not.
ok thank youAnd it is quite easy to find counter-examples. For example, let ##y = x^2##. Then ##dy/dx = 2x \neq y/x = x##.