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If a and b satisfy

 

2a/(a - 2b) - 6b/(a + 2b) = 3

 

a/(a - 2b) + 6b/(a + 2b) = -1

 

What is ab/(a^2 - 4b^2)?

 
 Sep 11, 2021
 #1
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ab/(a^2 - 4b^2) = 2/7.

 
 Sep 12, 2021

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