⒈已知a与b互为相反数,且Ⅰa-bⅠ=4/5,求(a-ab+b)/(a的平方+ab+1)的值.还有⒉(1/1998-1)(1/1997-1)(1/1996-)…(1/1001-1)(1/1000-1)⒊-177*(1/32-0.125)/(-1.2)*(-16/13)⒋(1-1/2的平方)(
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![⒈已知a与b互为相反数,且Ⅰa-bⅠ=4/5,求(a-ab+b)/(a的平方+ab+1)的值.还有⒉(1/1998-1)(1/1997-1)(1/1996-)…(1/1001-1)(1/1000-1)⒊-177*(1/32-0.125)/(-1.2)*(-16/13)⒋(1-1/2的平方)(](/uploads/image/z/1604600-8-0.jpg?t=%E2%92%88%E5%B7%B2%E7%9F%A5a%E4%B8%8Eb%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E4%B8%94%E2%85%A0a-b%E2%85%A0%3D4%EF%BC%8F5%2C%E6%B1%82%EF%BC%88a-ab%2Bb%29%EF%BC%8F%28a%E7%9A%84%E5%B9%B3%E6%96%B9%2Bab%2B1%29%E7%9A%84%E5%80%BC.%E8%BF%98%E6%9C%89%E2%92%89%EF%BC%881%EF%BC%8F1998-1%EF%BC%89%EF%BC%881%EF%BC%8F1997-1%29%281%EF%BC%8F1996-%29%E2%80%A6%EF%BC%881%EF%BC%8F1001-1%EF%BC%89%EF%BC%881%EF%BC%8F1000-1%EF%BC%89%E2%92%8A-177%2A%EF%BC%881%EF%BC%8F32-0.125%EF%BC%89%2F%EF%BC%88-1.2%EF%BC%89%2A%EF%BC%88-16%2F13%EF%BC%89%E2%92%8B%EF%BC%881-1%2F2%E7%9A%84%E5%B9%B3%E6%96%B9%EF%BC%89%EF%BC%88)
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