已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2) 求|a-2b|+√ab的值 括已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2)求|a-2b|+√ab的值括号为一个整体,不必要先算
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![已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2) 求|a-2b|+√ab的值 括已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2)求|a-2b|+√ab的值括号为一个整体,不必要先算](/uploads/image/z/8618539-67-9.jpg?t=%E5%B7%B2%E7%9F%A5ab%E6%BB%A1%E8%B6%B3+b%3D%E3%80%94%28%E2%88%9Aa%26%23178%3B-4%29%2B%28%E2%88%9A4-a%26%23178%3B%29%2B4%E3%80%95%2F%28a-2%29+%E6%B1%82%7Ca-2b%7C%2B%E2%88%9Aab%E7%9A%84%E5%80%BC+%E6%8B%AC%E5%B7%B2%E7%9F%A5ab%E6%BB%A1%E8%B6%B3+b%3D%E3%80%94%28%E2%88%9Aa%26%23178%3B-4%29%2B%28%E2%88%9A4-a%26%23178%3B%29%2B4%E3%80%95%2F%28a-2%29%E6%B1%82%7Ca-2b%7C%2B%E2%88%9Aab%E7%9A%84%E5%80%BC%E6%8B%AC%E5%8F%B7%E4%B8%BA%E4%B8%80%E4%B8%AA%E6%95%B4%E4%BD%93%2C%E4%B8%8D%E5%BF%85%E8%A6%81%E5%85%88%E7%AE%97)
已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2) 求|a-2b|+√ab的值 括已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2)求|a-2b|+√ab的值括号为一个整体,不必要先算
已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2) 求|a-2b|+√ab的值 括
已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2)
求|a-2b|+√ab的值
括号为一个整体,不必要先算
已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2) 求|a-2b|+√ab的值 括已知ab满足 b=〔(√a²-4)+(√4-a²)+4〕/(a-2)求|a-2b|+√ab的值括号为一个整体,不必要先算
b=〔(√a²-4)+(√4-a²)+4〕/(a-2)
若上式有意义,
a-2不等于0,a不等于2
a^2-4>>0 a^2>> 4 4-a^2