Mathematics, 07.03.2021 05:10 bunng7387
Provide an appropiate response. At the two points where the curve x² + 2xy + y² = 9 crosses the x-axis, the tangents to the curve are parallel. What is the common slope of these tangents?
Answers: 3
![\displaystyle \frac{d}{dx} \Big [ x^2 + 2xy + y^2 = 9 \Big ]](/tpl/images/1175/2631/9c433.png)
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