1. Find the equations of the normals to the curve y = x^3 - 3x + 1 which are parallel to the line x + 9y + 4 = 0.
2. A tangent is drawn from the point (-4,3) to the curve xy + 4y = 5. Find the coordinates of the point of contact.
收錄日期: 2021-04-23 18:28:30
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