设函数f(x)=2sin(2x-3π/4)+1,求函数y=f(x)单调增区间
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设函数f(x)=2sin(2x-3π/4)+1,求函数y=f(x)单调增区间
设函数f(x)=2sin(2x-3π/4)+1,求函数y=f(x)单调增区间
设函数f(x)=2sin(2x-3π/4)+1,求函数y=f(x)单调增区间
f(x)是什么函数?你不把f(x)的表达式写出来,别人怎么回答?
增区间:2kπ-π/2≤2x-3π/4≤2kπ+π/2
kπ+π/8≤x≤kπ+5π/8
则递增区间是:[kπ+π/8,kπ+5π/8],其中k∈Z
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