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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 − 6, g(x) = x − 4f(g(x)) =
2.f(x) = 3x + 9, g(x) = −xf(g(x)) =
3.f(x) = −3x + 4, g(x) = 2x − 6f(g(x)) =
4.f(x) = x − 2, g(x) = 2x + 2f(g(x)) =
5.f(x) = −2x + 7, g(x) = 4x + 1f(g(x)) =
6.f(x) = −4x − 8, g(x) = −2x + 7f(g(x)) =
7.f(x) = 2x + 5, g(x) = 4x + 5f(g(x)) =
8.f(x) = 2x − 9, g(x) = −x + 5f(g(x)) =
9.f(x) = 5x + 3, g(x) = −3xf(g(x)) =
10.f(x) = 4x + 8, g(x) = 3x − 5f(g(x)) =
11.f(x) = 5x − 5, g(x) = −x − 1f(g(x)) =
12.f(x) = x + 2, g(x) = −2x + 5f(g(x)) =
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