函数y=cos(2x-π/3)的单调增区间是

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函数y=cos(2x-π/3)的单调增区间是
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函数y=cos(2x-π/3)的单调增区间是
函数y=cos(2x-π/3)的单调增区间是

函数y=cos(2x-π/3)的单调增区间是
2kπ+π≤2x-π/3≤2kπ+2π
2kπ+4π/3≤2x≤2kπ+7π/3
kπ+2π/3≤x≤kπ+7π/6
函数y=cos(2x-π/3)的单调增区间是[kπ+2π/3,kπ+7π/6],k∈Z

∵当2x-π/3∈[2kπ+π,2kπ+2π]时,y单调增
∴x∈[kπ+2π/3,2kπ+7π/4]
∴单调增区间是 [kπ+2π/3,2kπ+7π/4]

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