已知向量a=(sinx,-1),向量b=(√3cosx ,-½),函数f(x)=(a+b)a-2 (1)求函数的最小正周期9最小正周期T
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![已知向量a=(sinx,-1),向量b=(√3cosx ,-½),函数f(x)=(a+b)a-2 (1)求函数的最小正周期9最小正周期T](/uploads/image/z/8553776-32-6.jpg?t=%E5%B7%B2%E7%9F%A5%E5%90%91%E9%87%8Fa%3D%28sinx%2C-1%29%2C%E5%90%91%E9%87%8Fb%3D%28%E2%88%9A3cosx+%2C-%26%23189%3B%29%2C%E5%87%BD%E6%95%B0f%28x%29%3D%28a%2Bb%29a-2+%281%29%E6%B1%82%E5%87%BD%E6%95%B0%E7%9A%84%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F9%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9FT)
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