定义区间[m,n]的长度为n-m,已知函数y=sinx的定义域为[2π/3,b],值域为[-1,√3/2],则区间[2π/3,b]的长度不可能是A.5π/6.B.7π/6C..3π/2D.11π/6
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![定义区间[m,n]的长度为n-m,已知函数y=sinx的定义域为[2π/3,b],值域为[-1,√3/2],则区间[2π/3,b]的长度不可能是A.5π/6.B.7π/6C..3π/2D.11π/6](/uploads/image/z/11579706-18-6.jpg?t=%E5%AE%9A%E4%B9%89%E5%8C%BA%E9%97%B4%5Bm%2Cn%5D%E7%9A%84%E9%95%BF%E5%BA%A6%E4%B8%BAn-m%2C%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0y%3Dsinx%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BA%5B2%CF%80%2F3%2Cb%5D%2C%E5%80%BC%E5%9F%9F%E4%B8%BA%5B-1%2C%E2%88%9A3%2F2%5D%2C%E5%88%99%E5%8C%BA%E9%97%B4%5B2%CF%80%2F3%2Cb%5D%E7%9A%84%E9%95%BF%E5%BA%A6%E4%B8%8D%E5%8F%AF%E8%83%BD%E6%98%AFA.5%CF%80%2F6.B.7%CF%80%2F6C..3%CF%80%2F2D%EF%BC%8E11%CF%80%2F6)
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