[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简
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[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简[(s/a+s
[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简
[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简
[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简
[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简[(s/a+s/b)/2]/[(s/a-s/b)/2]怎么化简
原式=(s/a+s/b)/(s/a-s/b)=(a+b)s/(b-a)s=(a+b)/(b-a)
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