设函数f(x)=sin(2x+ φ)(-π
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设函数f(x)=sin(2x+ φ)(-π
设函数f(x)=sin(2x+ φ)(-π
设函数f(x)=sin(2x+ φ)(-π
sinx对称轴为x=π/2+kπ;
所以2×π/8+Φ=π/2+kπ;
Φ=π/4+kπ;
∵﹣π<Φ<0;
∴Φ=-3π/4;
很高兴为您解答,skyhunter002为您答疑解惑
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