设函数f(x)=sin3x+acos2x 满足f(π/6 -x)=f(π/6 +x )则a等于
1个回答
由题意知对称轴是π/6
由三角函数的性质可知,函数的对称轴处取得函数的最值
∴f(−π /6)=±√(1+a^2 )
∴−√3 /2 +1 /2 a=±√1+a2
∴a=−√3 /3
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