若函数f(x)=2sin(2x-π/3+φ)是偶函数,则φ的值可以是( ) A.5π/6 B.π/2 C.π/3 D.-π/2

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若函数f(x)=2sin(2x-π/3+φ)是偶函数,则φ的值可以是( ) A.5π/6 B.π/2 C.π/3 D.-π/2
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若函数f(x)=2sin(2x-π/3+φ)是偶函数,则φ的值可以是( ) A.5π/6 B.π/2 C.π/3 D.-π/2
若函数f(x)=2sin(2x-π/3+φ)是偶函数,则φ的值可以是( ) A.5π/6 B.π/2 C.π/3 D.-π/2

若函数f(x)=2sin(2x-π/3+φ)是偶函数,则φ的值可以是( ) A.5π/6 B.π/2 C.π/3 D.-π/2
选A
余弦是偶函数 则φ-π/3=π/2+kπ
φ=.5π/6+Kπ
K=0时 选A