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0-ba-0-ab-1-ab-ba-3-a-2-b-2-




Question Number 9717 by konen last updated on 28/Dec/16
((0.ba^− +0.ab^− )/(1/(ab−ba)))=3 ⇒ a^(2 ) − b^(2 ) =?
$$\frac{\mathrm{0}.\mathrm{b}\overset{−} {\mathrm{a}}+\mathrm{0}.\mathrm{a}\overset{−} {\mathrm{b}}}{\frac{\mathrm{1}}{\mathrm{ab}−\mathrm{ba}}}=\mathrm{3}\:\Rightarrow\:\mathrm{a}^{\mathrm{2}\:} −\:\mathrm{b}^{\mathrm{2}\:} =? \\ $$

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