A:怪诞暇想萧森毛骨悚然
B:聒躁俨然摇曳彻头彻尾
C:内帏巉岩寒暄阿谀奉承
D:乖张砧板饯道锲而不舍
A means a holiday, and people can do whatever they like during the holiday.
(Ⅰ)求函数f(x)的解析式;
(Ⅱ)当x∈0, π2 时,求函数f(x)的单调递增区间;
(Ⅲ)当x∈0, π6 时,不等式mf(x)+2m≥f(x)恒成立,求实数m的取值范围.