f(x)=2sin(π/2-x/2)sin(π+x/2)+cos方(π/2-x/2)-cos方(π+x/2)

httianx2022-10-04 11:39:540条回答

f(x)=2sin(π/2-x/2)sin(π+x/2)+cos方(π/2-x/2)-cos方(π+x/2)
1、若x属于(0,π/2),求f(x)的最小值
2、设g(x)=f(2x-π/4)+2m,x属于【π/4,7π/8】,若g(x)有两个零点,求实数m的取值范围.

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