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切线方程练习
切线方程 · 1–12
写出在给定 x 值处的切线方程，用斜截式表示。
1.f(x) = −x3 − x2 + 9x − 5, x = 1
2.f(x) = −2x3 − 3x2 − 8x − 5, x = 3
3.f(x) = −2x3 − 3x2 − 4x − 7, x = 0
4.f(x) = x3 + 2x − 1, x = 1
5.f(x) = x3 + x2 + 6x − 3, x = 2
6.f(x) = 2x3 + 2x2 − 9x − 5, x = 3
7.f(x) = −2x3 − 2x2 + 3x + 8, x = 1
8.f(x) = −x3 − 4x2 − 5x − 7, x = 2
9.f(x) = −x3 − 2x2 + 7x − 3, x = 3
10.f(x) = −x3 − 4x2 + 4x − 2, x = 3
11.f(x) = 2x3 + 4x2 − 6x − 9, x = 1
12.f(x) = −x3 + 2x2 + 6x − 4, x = 2
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