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(1)f(x)=sin(ωx+(ωx+π/3))+sin(ωx-(ωx+π/3))
=sin(2ωx+π/3)-√3/2
即 f(x)=sin(2ωx+π/3)-√3/2
得2π/(2ω)=π
所以 ω=1
(2)由(1) f(x)=sin(2x+π/3)-√3/2
x∈[-π/6,π/2]时,2x+π/3∈[0,4π/3]
所以
2x+π/3=π/2 即x=π/12时,得f(x)的最大值1-√3/2=(2-√3)/2
2x+π/3=4π/3, 即x=π/2时,得f(x)的最小值(-√3/2)-√3/2=-√3
希望能帮到你!
=sin(2ωx+π/3)-√3/2
即 f(x)=sin(2ωx+π/3)-√3/2
得2π/(2ω)=π
所以 ω=1
(2)由(1) f(x)=sin(2x+π/3)-√3/2
x∈[-π/6,π/2]时,2x+π/3∈[0,4π/3]
所以
2x+π/3=π/2 即x=π/12时,得f(x)的最大值1-√3/2=(2-√3)/2
2x+π/3=4π/3, 即x=π/2时,得f(x)的最小值(-√3/2)-√3/2=-√3
希望能帮到你!
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