求下列函数的最值及相应的X取值以及最小正周期:(1)y=3-cos2x;(2)y=2sin(2x+π/3)-1
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求下列函数的最值及相应的X取值以及最小正周期:(1)y=3-cos2x;(2)y=2sin(2x+π/3)-1
1)y=3-cos2x; T=2π/2=π
(2)y=2sin(2x+π/3)-1 T=2π/2=π
求下列函数的最值及相应的X取值以及最小正周期:(1)y=3-cos2x;(2)y=2sin(2x+π/3)-1
1)y=3-cos2x; T=2π/2=π
(2)y=2sin(2x+π/3)-1 T=2π/2=π