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Question: assume CAS cmd - Printable Version

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Question: assume CAS cmd - compsystems - 11-26-2016 07:01 PM

purge(a);
√(a^2); -> |a| //ok

assume(a>0)
√(a^2) -> a //ok

assume(b>0);
√[(a+b)^2]; -> |a+b| Why?
-> a+b