因为,对于siny,y∈[-π/2,+π/2]是单调增函数.所以,sin(π/3-x)的单调增区间是：(π/3-x)∈[-π/2,+π/2)],即：x∈[-π/6,5π/6],考虑长周期,sin(π/3-x)的单调增区间是x∈[2kπ-π/6,2kπ+5π/6.同理,还可以求出sin...