作业帮a+b = -1ab = -3/2(a-1/b) + (b-1/a) =(a-1/b) x (b-1/a) =一步一步的步骤yayayayyayaayayyayayayayyayayayayyayayya___________________________________________
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a+b = -1ab = -3/2(a-1/b) + (b-1/a) =(a-1/b) x (b-1/a) =一步一步的步骤yayayayyayaayayyayayayayyayayayayyayayya___________________________________________
a+b = -1
ab = -3/2
(a-1/b) + (b-1/a) =
(a-1/b) x (b-1/a) =
一步一步的步骤yayayayyayaayayyayayayayyayayayayyayayya___________________________________________
a+b = -1ab = -3/2(a-1/b) + (b-1/a) =(a-1/b) x (b-1/a) =一步一步的步骤yayayayyayaayayyayayayayyayayayayyayayya___________________________________________
=-1-（-1）/-3/2=-5/3
=-3/2-2/3-2=-25/6