若0<a1<a2,0<b1<b2,且a1+a2=b1+b2=1,则下列代数式仲值最大的是[ 标签:a1 a2,a1+a2,代数式 ] A.a1b1+a2b2B.a1a2+b1b21-a2-b2+a2b2+a2b2-a2+a2²-b2+b2²=1+2a2b2+a2²+b2²应该是1+2a2b2+a2²+b2²-2a2-2b2,接
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![若0<a1<a2,0<b1<b2,且a1+a2=b1+b2=1,则下列代数式仲值最大的是[ 标签:a1 a2,a1+a2,代数式 ] A.a1b1+a2b2B.a1a2+b1b21-a2-b2+a2b2+a2b2-a2+a2²-b2+b2²=1+2a2b2+a2²+b2²应该是1+2a2b2+a2²+b2²-2a2-2b2,接](/uploads/image/z/12079359-63-9.jpg?t=%E8%8B%A50%EF%BC%9Ca1%EF%BC%9Ca2%2C0%EF%BC%9Cb1%EF%BC%9Cb2%2C%E4%B8%94a1%2Ba2%3Db1%2Bb2%3D1%2C%E5%88%99%E4%B8%8B%E5%88%97%E4%BB%A3%E6%95%B0%E5%BC%8F%E4%BB%B2%E5%80%BC%E6%9C%80%E5%A4%A7%E7%9A%84%E6%98%AF%5B+%E6%A0%87%E7%AD%BE%EF%BC%9Aa1+a2%2Ca1%2Ba2%2C%E4%BB%A3%E6%95%B0%E5%BC%8F+%5D+A.a1b1%2Ba2b2B.a1a2%2Bb1b21-a2-b2%2Ba2b2%2Ba2b2-a2%2Ba2%26sup2%3B-b2%2Bb2%26sup2%3B%3D1%2B2a2b2%2Ba2%26sup2%3B%2Bb2%26sup2%3B%E5%BA%94%E8%AF%A5%E6%98%AF1%2B2a2b2%2Ba2%26sup2%3B%2Bb2%26sup2%3B-2a2-2b2%2C%E6%8E%A5)
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