tan(x+π/3)≥ - 根号3的解集
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tan(x+π/3)≥ - 根号3的解集
tan(x+π/3)≥ - 根号3的解集
tan(x+π/3)≥ - 根号3的解集
tan(x+π/3)≥ - 根号3
kπ -π/3≤ x+π/3
结合函数y=tanx的图像,得:
kπ-π/3≤x+π/3
tan(x+π/3)≥-√3
2kπ-π/3≤x+π/3≤2kπ+π/2或2kπ+2π/3≤x+π/3≤2kπ+3π/2 (k∈Z)
2kπ-2π/3≤x≤2kπ+π/6或2kπ+π/3≤x≤2kπ+7π/6 (k∈Z)
不等式的解集为[2kπ-2π/3,2kπ+π/6]U[2kπ+π/3,2kπ+7π/6] (k∈Z)