January 2004:

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January 2004:
Find dy/dx for the following implicit function. Determine where the function has horizontal and vertical tangents.
16x4 - 288x2 + 81y4 + 1296 = 0.

Bonus: How does the graph of this implicit function look like? Show where the horizontal and vertical tangents are in the graph.

The only point this function is defined is (0,0). Thus no neighborhood exists and differentiation is not meaningful. No other real x and y value exists for this function.

Correct Solutions:
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