Question

Asked Oct 18, 2019

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Find the points on the lemniscate where the tangent is horizontal.

8(x^{2} + y^{2})^{2} = 81(x^{2} − y^{2})

Step 1

The equation for the lemniscate

Step 2

Differentiate with respect to *x*.

Step 3

When derivative is equal zero, t...

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