已知曲线y=2x²-a求过点A(1,1)的切线方程求过点B(-2,3)的切线方程2.曲线y=-x²在点(2,-4)处切线的坐标轴交与AB两处求三角形OAB
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![已知曲线y=2x²-a求过点A(1,1)的切线方程求过点B(-2,3)的切线方程2.曲线y=-x²在点(2,-4)处切线的坐标轴交与AB两处求三角形OAB](/uploads/image/z/2830965-69-5.jpg?t=%E5%B7%B2%E7%9F%A5%E6%9B%B2%E7%BA%BFy%3D2x%26%23178%3B-a%E6%B1%82%E8%BF%87%E7%82%B9A%EF%BC%881%2C1%EF%BC%89%E7%9A%84%E5%88%87%E7%BA%BF%E6%96%B9%E7%A8%8B%E6%B1%82%E8%BF%87%E7%82%B9B%EF%BC%88-2%2C3%EF%BC%89%E7%9A%84%E5%88%87%E7%BA%BF%E6%96%B9%E7%A8%8B2.%E6%9B%B2%E7%BA%BFy%3D-x%26%23178%3B%E5%9C%A8%E7%82%B9%EF%BC%882%2C-4%EF%BC%89%E5%A4%84%E5%88%87%E7%BA%BF%E7%9A%84%E5%9D%90%E6%A0%87%E8%BD%B4%E4%BA%A4%E4%B8%8EAB%E4%B8%A4%E5%A4%84%E6%B1%82%E4%B8%89%E8%A7%92%E5%BD%A2OAB)
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