已知函数f(x)=2sin(2x+π/6)-1
1个回答
最小正周期:
2π/2=π
最大值2-1=1
零点就是
2sin(2x+π/6)=1
sin(2x+π/6)=0.5
2x+π/6=2kπ+π/3或2kπ+2π/3
x=kπ+π/12或kπ+π/4
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