- #1
Minihoudini
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Homework Statement
substituting r for y and theta for x as it will be easier to read
find dy/dx if r=x^2 tan(2x)
I don't know the answer
Homework Equations
The Attempt at a Solution
d/dx (y) = d/dx [x^2 tan(2x)]
dy/dx = dx/dx [2x] d/dx [tan (2x)]
dy/dx = 2x sec^2 (2x) (2)
dy/dx = 4x sec^2 (2x)
its wrong though