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Question

Simplify:

a[a¯¯¯¯¯¯¯¯¯¯¯¯b+a{a(a¯¯¯¯¯¯¯¯¯¯¯¯ba)}]

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Solution

a[a¯¯¯¯¯¯¯¯¯¯¯¯b+a{a(a¯¯¯¯¯¯¯¯¯¯¯¯ba)}]=a[aba{a(ab+a)}]=a[b{aa+ba}]=a[bb+a]=a+b+ba=2b


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