函数y=3sin(2x+π/6)的单调递减区间

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函数y=3sin(2x+π/6)的单调递减区间

函数y=3sin(2x+π/6)的单调递减区间
函数y=3sin(2x+π/6)的单调递减区间

函数y=3sin(2x+π/6)的单调递减区间
2kπ+π/2≤2x+π/6≤2kπ+3π/2
∴kπ+π/6≤x≤kπ+2π/3
即:函数y=3sin(2x+π/6)的单调递减区间是[kπ+π/6,kπ+2π/3],k∈Z

单调减区间是:2kPai+Pai/2<=2x+Pai/6<=2kPai+3Pai/2
即有[kPai+Pai/6,kPai+2Pai/3]

(π/2+2kπ<=2x+π/6<=3π/2+2kπ)