SOLUTION: how to get log-0.91?? the value for log already mention sign negative..

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Question 730198: how to get log-0.91?? the value for log already mention sign negative..
Found 2 solutions by lynnlo, ikleyn:
Answer by lynnlo(4176) About Me  (Show Source):
Answer by ikleyn(53763) About Me  (Show Source):
You can put this solution on YOUR website!
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how to get log-0.91?? the value for log already mention sign negative..
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Logarithm is NOT DEFINED for negative argument.