y=1/2sin(π/4-2x/3)=-1/2sin(2x/3-π/4)
单减间区间求法
令2kπ-π/2 =< 2x/3-π/4
y=1/2sin(π/4-2x/3)求单调区间
y=1/2sin(π/4-2x/3)求单调区间
y=(1/2)sin((π/4)-(2x/3))
y=-|sin(x+(π/4))|
y=(1/2)sin((π/4)-(2x/3))
y=-|sin(x+(π/4))|
数学人气:564 ℃时间:2020-03-21 17:54:51
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