(1/a+1/b)/(1/a-1/b)化简过程

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(1/a+1/b)/(1/a-1/b)化简过程(1/a+1/b)/(1/a-1/b)化简过程(1/a+1/b)/(1/a-1/b)化简过程=1/a^2-1/ab+1/ab-1/b^2=1/a^2-1/

(1/a+1/b)/(1/a-1/b)化简过程
(1/a+1/b)/(1/a-1/b)化简过程

(1/a+1/b)/(1/a-1/b)化简过程
=1/a^2-1/ab+1/ab-1/b^2
=1/a^2-1/b^2

(1/a+1/b)/(1/a-1/b)
=[(a+b)/ab]/[-(a-b)/ab]
=-[(a+b)/ab]*[ab/(a-b)]
=-(a+b)/(a-b)
=b²-a²