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复合函数练习
复合函数 · 1–12
求复合函数的值或化简复合函数。
1.f(x) = 2x − 8, g(x) = −3x2g(f(x)) =
2.f(x) = −2x + 4, g(x) = −3x2 + 4f(g(x)) =
3.f(x) = 2x + 5, g(x) = 2x2 + 2f(g(x)) =
4.f(x) = −5x − 6, g(x) = 2x2 + 1g(f(x)) =
5.f(x) = 4x + 3, g(x) = −3x2 − 5f(g(x)) =
6.f(x) = −2x − 9, g(x) = −2x2 − 3f(g(x)) =
7.f(x) = 2x + 6, g(x) = 3x2 − 4f(g(x)) =
8.f(x) = 4x + 9, g(x) = x2 − 6f(g(x)) =
9.f(x) = 3x + 4, g(x) = 3x2 + 7f(g(x)) =
10.f(x) = 2x, g(x) = −3x2 − 2f(g(x)) =
11.f(x) = −x + 3, g(x) = 4x2 + 4f(g(x)) =
12.f(x) = −4x − 4, g(x) = −3x2 − 1g(f(x)) =
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