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Let a * b = ab/(a - b). What is the value of (1*2)*3? Express your answer as a common fraction.

 Jul 13, 2022
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(1 * 2) =  (1 * 2) / ( 1  - 2)  =   -2

 

(1 * 2) * 3   =     -2 * 3  =    (-2 * 3) / ( -2 - 3)  =  -6 / -5  =   6 / 5

 

 

cool cool cool 

 Jul 13, 2022

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