已知向量m=(根号3倍的sin2x+2,cosx),向量n=(1,2cosx),设函数f(x)=向量n*向量m(1)求f(x)的最小正周期与单调区间(2)在三角形ABC中,a,b,c分别是角A,B,C对边,若A=π/3,b=f(5π/6),三角形ABC的面积为
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![已知向量m=(根号3倍的sin2x+2,cosx),向量n=(1,2cosx),设函数f(x)=向量n*向量m(1)求f(x)的最小正周期与单调区间(2)在三角形ABC中,a,b,c分别是角A,B,C对边,若A=π/3,b=f(5π/6),三角形ABC的面积为](/uploads/image/z/6078975-15-5.jpg?t=%E5%B7%B2%E7%9F%A5%E5%90%91%E9%87%8Fm%3D%EF%BC%88%E6%A0%B9%E5%8F%B73%E5%80%8D%E7%9A%84sin2x%2B2%2Ccosx%EF%BC%89%2C%E5%90%91%E9%87%8Fn%3D%EF%BC%881%2C2cosx%EF%BC%89%2C%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3D%E5%90%91%E9%87%8Fn%2A%E5%90%91%E9%87%8Fm%EF%BC%881%EF%BC%89%E6%B1%82f%28x%29%E7%9A%84%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F%E4%B8%8E%E5%8D%95%E8%B0%83%E5%8C%BA%E9%97%B4%EF%BC%882%EF%BC%89%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2Ca%2Cb%2Cc%E5%88%86%E5%88%AB%E6%98%AF%E8%A7%92A%2CB%2CC%E5%AF%B9%E8%BE%B9%2C%E8%8B%A5A%3D%CF%80%2F3%2Cb%3Df%EF%BC%885%CF%80%2F6%EF%BC%89%2C%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BA)
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