Common Calculus Mistakes
Implicit Differentiation

The Goal

Find dy/dx, where x and y are related by the equation


The Mistake

Find the mistake:


(Roll the mouse over the math to see a hint in red)

The Correction


(Roll the mouse over the area above to see the correction in blue)

An Explanation

The derivative of y2 with respect to x was incorrectly computed to be y times dy/dx instead of 2y times dy/dx.

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